[[quoteright:320:http://static.tvtropes.org/pmwiki/pub/images/law-and-order-logo_6444.jpg]]
[[caption-width-right:320:'''''[[http://www.youtube.com/watch?v=-8lDYrvTILc CHUNG-CHUNG]]''''']]

->''"In the criminal justice system, the people are represented by two separate, yet equally important, groups: the police who investigate crime, and the district attorneys who prosecute the offenders. These are their stories."''\\


'''''Law & Order''''' is a [[LongRunners long running]] DramaticHourLong Courtroom Drama created by Creator/DickWolf that ran from 1990 to 2010 (twenty seasons, four hundred and fifty-six ('''456''') epic episodes). Basic concept is a MixAndMatch, with the first half, "Law," showing the detectives of the 27th precinct trying to solve a crime (PoliceProcedural), and the second half, "Order," showing the Manhattan District Attorney's office trying to prosecute (LawProcedural).

''Law & Order'' began as an optimistic and realistic portrayal of the criminal justice system. It became extremely popular because it was often RippedFromTheHeadlines, as NBC promotional ads put it, which meant that it was tentatively based on controversial cases and news stories that were extensively covered as the show progressed. This allowed viewers to remain invested in the show's plot before even viewing the episode. In addition, the inclusion of a more diverse cast of characters allowed the show to appeal to wider demographics and secure its prestigious LongRunner status.

[[http://www.apaixonadosporseries.com.br/wp-content/arquivos/2010/04/2891230092_b00b6214b4_o.jpg http://static.tvtropes.org/pmwiki/pub/images/sworstnightmaretvtropes_6121.jpg]]
[[caption-width:350:The entire cast of Seasons 1-14 and Creator/DickWolf, minus Michael Moriarty, Steven Hill, and Dianne West.]]

Very little is known about the characters' personal lives, with all the emphasis put on the formula of the story, which was part of the reason for the constant character changes; actors often complained that it was extremely repetitive. Every single character on the show, for this reason, was replaced at least once, and the show finished with a completely different cast from its start. Despite this, the focus on the formula makes the show very rerun friendly on various cable outlets. In addition, the show's characters were well-written enough to justify sustaining relatively superficial information about them; Jerry Orbach's wise-cracking character, Detective Lennie Briscoe, was often considered to be a representation of the quintessential ''New Yawker''.

Notable long-running cast members include S. Epatha Merkerson as Lieutenant Van Buren (Seasons 4-20), Sam Waterston as Executive A.D.A. (later D.A.) Jack [=McCoy=] (Seasons 5-20), Jerry Orbach as Det. Lennie Briscoe (Seasons 3-14), Steven Hill as D.A. Adam Schiff (Seasons 1-10), Jesse L. Martin as Det. Ed Green (Seasons 10-18), Chris Noth as Det. Mike Logan (Seasons 1-5), former U.S. Senator Fred Dalton Thompson as D.A. Arthur Branch (Seasons 13-17), and Alana de la Garza as A.D.A. Connie Rubirosa (Seasons 17-20).

It has an extremely [[MostWonderfulSound memorable sound effect]] (''CHUNG CHUNG'', or, as actor Dann Florek called it, the "Doink-Doink") played throughout that, while not a ThemeTune, has much the same effect. Its actual ThemeTune is also very recognizable, and remixes of it have been used in its [[Franchise/LawAndOrder subsequent spinoffs]], including several international remakes. It has also been the subject of much AffectionateParody.

The show has incited much PopCulturalOsmosis since its inception, as it is very well imbedded into the public consciousness for its dramatic portrayal of homicide cases based on real life cases or controversies. This has also led to some problems, with public figures chastising the show's biases or harmful coverage of certain news stories. This is most notably shown in the real life [[http://en.wikipedia.org/wiki/Andrea_Yates Andrea Yates trial]]; see the RippedFromTheHeadlines example below.

When the show was canceled after its 20th season and subsequent attempts to revive it had failed, Creator/DickWolf optimistically lamented that the show "has moved on to the history books".

It has a [[Characters/LawAndOrder character sheet]] and a [[Recap/LawAndOrder recap page]]. Tropers are encouraged to contribute.
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!!In the TV Tropes system, the users are represented by two separate, yet equally important, groups: the users who research tropes, and the users who put them up on the website. These are their tropes:

[[foldercontrol]]

[[folder: Tropes A-B]]
* AcceptableBreaksFromReality: 95% of pre or in-trial fact finding would be done by investigators (of the type Lenny Briscoe was on ''Trial By Jury''), not the [=DAs=] themselves.
* AcquittedTooLate: Victor Cruz in "By Perjury", where he was sentenced to death for a crime he didn't commit. The man who ''did'' commit the murder, Cruz's [[spoiler: corporate attorney who represented him in a class-action lawsuit against an airline, perjured himself on the stand to implicate him. So, Cutter pulls off an extremely compelling argument where he tries the attorney for the murder of Victor Cruz by perjury, since there wasn't any evidence against the attorney for the actual murder of which Cruz was convicted.]]
* AdHominem: In "Sideshow", [=McCoy=] refuses to disclose the name of a certain witness to the independent counsel in front of a grand jury because [[spoiler: he promised the witness that he would keep her sexuality a secret]], so the independent counsel attacks [=McCoy=], Briscoe, Abbie, and Curtis's integrity, to diminish the DA's credibility enough to get him to reveal the name of the witness.
** In the second part of "Sideshow", it's revealed that [[spoiler: the independent counsel, under the pretense of investigating fraud and corruption, was actually using the witness's name to call out members of the government for being gay.]]
* AdamWesting: This trope might apply to Creator/AnnaGunn, who famously portrayed Skyler White on BreakingBad. Skyler White is a strong, intelligent female character who is afraid of, but devoted to, her husband. In the L&O episode "Love Eternal", on the other hand, Gunn plays a ditzy dominatrix who is nauseatingly devoted to her husband (to the point where she sends Connie diamond earrings containing her husband's ashes).
* {{Adorkable}}: CSU's Julian Beck. A skinny guy who geeks out whenever he gets to give the cops good evidence. He really seems to enjoy his job.
* TheAllegedExpert: Poor Lupo. He comes off as this a lot because he's studying to become a lawyer, and thus knows a lot more about law than other detectives; however, he makes poor (but logical) judgment calls and mistakes while investigating cases, which tears apart his credibility. Especially in "By Perjury", where Lupo [[spoiler: read into the law well enough to legally, but unethically, get crucial evidence against a client that would've otherwise taken weeks to obtain. However, a ''pro se'' client uses Lupo's standing as a law student to convince the judge that Lupo violated the spirit of the law, even if he technically didn't violate its letter, and thus gets the crucial evidence and all charges against the attorney dropped.]]
* AlwaysMurder: Even in cases that don't start out as murders - for example, "Corpus Delicti", which involved homicide detectives investigating [[spoiler: a dead horse]] - eventually a body will surface. Some cases even involve attempted murders, and extremely debilitating injuries to the victims.
** Although, it's completely averted in "Doubles", which focuses entirely on a minor assault charge against a teenage tennis player, and it turns out that [[spoiler: the tennis player actually wanted herself to be assaulted, so that she would have a reason to quit playing tennis.]]
* AmbiguouslyJewish: In "Return", Evan Handler (of SexAndTheCity and {{Californication}} fame, both shows in which he portrayed pushover Jewish characters) plays an adopted Jew who [[spoiler: stole money from his father's associate's business to fund his cocaine addiction, and executes a murder-for-hire to silence the owner. He did this because even though his father and the Jewish community he was raised in had strong religious convictions, he never felt as though he had a voice in his religion or his community, as everyone looked down on him for having been adopted. Indeed, in the end when discussing a plea agreement, he defers the decision to his adoptive parents.]]
* AmoralAttorney: Attorneys, prosecutors, judges, hell, even clerks... no one is spared.
* AnAesop: Often not-so-subtly delivered by [=McCoy=] in his closing arguments.
** The cake has to be taken in "Vaya Con Dios", where [=McCoy=] goes in front of the Supreme Court to argue that all life is sacred, to convince the legislature to convict [[spoiler: a Chilean senator.]]
* AndStarring: The senior detective and the EADA are both introduced as "Starring..." despite the fact that the EADA is always fourth in the opening credits.
** This is a relic of the original plan for the show. The idea was that the show would be more versatile in syndication if they could chop each episode into two parts and sell it in half hour blocks. If that had ever been the case, the "Law" episodes, with the cops, would have only had the three police officers shown in the credits, while the "Order" half, with the lawyers, would have only the attorneys.
** "Also Starring Carolyn [=McCormick=] as Dr. Elizabeth Olivet" in the show's third and fourth seasons. This was because, at the time she got her PromotionToOpeningTitles, she was the only female regular, and then NBC Entertainment president Warren Littlefield felt that the absence of female characters in the first two seasons was scaring away potential viewers. She was demoted soon after the arrivals of S. Epatha Merkerson and Jill Hennessey.
* AnimalTesting: The 2001 episode "Whose Monkey Is It Anyway?"
* AnimalWrongsGroup: In "Animal Instinct," a professor is murdered and animal rights graffiti is found at the crime scene. The victim had been the target of protests from animal rights groups, so they're suspected of killing her, but [[spoiler: it was really a mentally unbalanced woman who was obsessed with the victim's husband and the scene was staged]].
* AllPsychologyIsFreudian: Skoda loves using sexuality to elicit certain information from difficult patients.
** To give one example from "Merger", he chatted normally with a mentally unstable girl about her murdered sister... [[spoiler: then immediately presses her with "How did you feel about your sister sleeping with [your fiance]?"]]
** In another from "Faccia A Faccia", he skeptically chats with an old mob boss who has supposedly incurred a debilitating stroke... [[spoiler: before turning toward the mob boss's grandson and mocking the man's sexual impotency, and when the grandson retaliates, the mob boss reacts as a competent person would.]]
** Dr. Olivet does this too in "American Jihad", where she is able to [[spoiler: pinpoint a grossly misogynistic Islamic militant's radicalism to his impotency and overall feeling of invalidation from Western expectations toward white males. All from viewing one or two cross-examinations.]]
* AffectionateParody: The show's strict formula, distinctive iconography and influential LongRunner status has meant that it's been the subject of a lot of parody.
** ''WesternAnimation/TheSimpsons'' parodied the show with ''Law and Order: Elevator Inspectors Unit'' ("Helter Shelter").
** ''Series/SaturdayNightLive'' ran a fake ad for ''Law & Order: Parking Violations Unit'' around the time ''Criminal Intent'' started.
** Creator/AdultSwim also parodied this in a commercial announcing thirty or so ''HarveyBirdmanAttorneyAtLaw'' spinoffs.
** ''Series/{{Community}}'' based an entire episode around the main characters trying to find out who [[SeriousBusiness destroyed their yam-based science class project]] as if they were on an episode of this show.
* AndStarring: When actors such as Richard Brooks and Carey Lowell appear, or any actor who was previously a regular on the show, their roles are credited with "Special Guest Appearance(s) by:". This applies to the [[HomicideLifeOnTheStreet Homicide]] and [[LawAndOrderSpecialVictimsUnit SVU]] crossovers too, where detectives or [=ADAs=] from those shows appear.
* {{Anticlimax}}: Averted in a lot of episodes, even those where the defendant accepts a plea bargain. However, "Can I Get a Witness" plays this straight to a fault. [[spoiler: All the witnesses against a notorious drug dealer except for one are either killed, or back off from testifying against him. Because of this, the defense establishes enough reasonable doubt to render a "not guilty" verdict, leaving Serena and [=McCoy=] shocked and afraid for the safety of the witness who ''did'' testify.]]
* ArmyOfLawyers: "Showtime" is a very notable example. Right after each and every lawyer of varying specializations for the defendant clearly states his or her name and specialization, Jack turns over to Jamie and facetiously whispers, "It's just you and me, Jamie."
* ArsonMurderAndJaywalking: The plot description for "[=Bitch=]":
-->"A cosmetics tycoon (Lucie Arnaz) is involved in controversial stock transactions, scandalous affairs and hormone replacement therapy."
* ArtisticLicenseStatistics: Subverted in "Skin Deep". [[spoiler: The defense lawyer is successfully able to convince a judge that an 80% DNA match to her client is not conclusive enough to establish culpability, and Stone is all up in arms about how the judge is an idiot for being unable to understand that science is sometimes imperfect. However, it turns out that the DNA, was, in fact, not the client's; it was the client's daughter's DNA.]]
* AssholeVictim: About 33% of the Victims Of The Week turn out to be this - ranging from mere {{Jerkass}}es on the wrong end of DisproportionateRetribution to people [[KarmicDeath got what was coming.]]
** Played with in "Dignity", depending on which side of the abortion argument you're on. [[spoiler: A late-term abortion doctor who was murdered by a pro-life man in cold blood turned out to be somewhat of a radical. He consented to abort certain babies with treatable, if debilitating, genetic conditions. And, in one case, a woman went into labor while he was aborting her child; when the baby was born alive, the woman asked him to "go through with the procedure".]]
* AuditThreat: Happens all the time.
* AutopsySnackTime: Dr. Rodgers. Much to the chagrin and disgust of detectives and A.D.A.s alike.
--> '''Dr. Rodgers''': This is the cleanest room in the city.
* TheBadGuysAreCops: A lot of episodes show cops misusing their authority to various degrees. "Bait" involved a detective [[spoiler: using a teenage boy as a drug informant, which results in the boy becoming critically injured and his girlfriend being murdered.]] "Hunters" had [[spoiler: [=McCoy=] unable to prosecute two bounty hunters for abusing their license to kill by participating in a massive cover-up, where they killed an informant and his entire family.]] "DWB" involved [[spoiler: cops committing a disgusting hate crime against a black man.]]
* BailEqualsFreedom: In lots of cases, the district attorneys try to remand dangerous high-income defendants because they fear that if they post bail, they'll target more people or even the victims.
* BaitAndSwitchLesbians: Inverted in "Blood", where Lennie tries to flirt with a nurse to get confidential information about a certain patient out of her. She tells him that another woman came in asking about the same patient, and that "she was a lot cuter than you."
--> '''Lennie''': I knew it.
* BatmanGambit: Stone, [=McCoy=], Cutter and some of the assistant [=ADAs=] have used a defendant's own personality traits against them, either to bluff them into pleas or trash them on the stand.
** One was attempted by a defendant in a season six episode. The defendant ran a [[spoiler: small prostitution ring consisting mainly of fellow college students, which was paid for and worked as supplement to her father's shoe-manufacturing business (the father would use the service for his business clients to convince them to buy his products). The defendant killed one of her prostitutes when she expressed desire to quit. [=McCoy=] had her on the ropes at trial (the fact that she fled jurisdiction was, in itself, pretty damning evidence), so a result she attempted to use [[AccuseTheWitness Plan B]] and accused her father of the murder. The father, asked by [=McCoy=] prior to his testimony, didn't even know what floor of the library the girl he supposedly killed was on. The daughter was acquitted of all charges, and presumably they anticipated that [=McCoy=] would have the father arrested and tried for the murder, only to be acquitted because he didn't do it. [=McCoy=] pre-empts this and instead has the father arrested for enterprise corruption, for which he is guilty and would probably be convicted for.]]
** In the first season two-parter "The Torrents of Greed," an [[spoiler: AffablyEvil Mafia boss (a [[NoCelebritiesWereHarmed thinly-veiled version]] of John Gotti) runs a doozy of one on Stone, using two {{Heel Face Mole}}s to feed him false information about a murder the boss ordered and getting Stone to indict him on the basis of their testimony. When the case goes to trial, the boss's attorney melodramatically reveals that all of the evidence against his client is based on perjury and the boss walks. Later, when Stone actually does get ironclad proof tying the boss to the murder, he can't do anything about it because of double jeopardy.]]
** In the fourth season, [[spoiler: Philip Swann (played by Zeljko Ivanek)]] manages to successfully pull one off. [[spoiler: He kills an old man who had swindled him out of money that he himself had swindled from some of his wealthier friends. He fed his accomplice misinformation about how he killed the victim and where he buried the body (He moved the body after burying him in one place so the police wouldn't find it) so that, if they did find the body, he could challenge the testimony of his accomplice. Because he bragged about the crime to practically everyone, he was convicted, but he was able to appeal the conviction years later after the police discovered this body, and secured himself an acquittal in the process, because most of the people who testified had either moved away or were afraid to testify. It ended up backfiring because he got cocky and had his accomplice killed by an associate of his cell-mate's, for which Stone was able to flip the accomplices for, but not before Swann was able to stir up Stone's anger by bringing civil suit against him and dredging up his personal life to use as leverage.]]
* BeAsUnhelpfulAsPossible: A staple of suspects and witnesses alike.
* BeautyEqualsGoodness: In "Bad Girl", [[spoiler: a girl who wears heavy black makeup, abuses drugs, and is completely disrespectful to authority ruthlessly murders a police officer. In her trial, when the makeup is gone and she is calm on the stand, she admits to the murder and asks for a death penalty, because she knows that she is in Jesus's hands. For this reason, a religious group argues that it would be inhumane for such a religious client to get the death penalty, to which [=McCoy=] argues that the group wouldn't even be pursuing this if she weren't a white, beautiful, Christian woman.]]
* BerserkButton: Don't target Jamie's kids. In fact, don't target anyone's kids in front of Jamie. In "Working Mom", she freaks out on [=McCoy=] for threatening to prosecute a husband for obstruction and have his kids taken away, even though she knows that he made an EmptyCopThreat to see whether he was actually telling the truth.
* BestServedCold: Referenced in "The Torrents of Greed (Pt. 2)". After being humiliated in court by a mob boss, Stone goes to great lengths to put the boss away. When Robinette calls Stone for seemingly focusing more on payback than justice, this exchange results:
-->'''Stone''': You know, the Russians say revenge is the sweetest passion.
-->'''Robinette''': Yeah. And the Sicilians say it's a meal that's best served cold.
* BewareTheHonestOnes: Serena, and Curtis to an extent. Serena completely goes against legal ethics and [=McCoy=]'s tactics when they interfere her beliefs: especially [=McCoy=]'s annulment of [[spoiler: over 200 homosexual marriages in New York.]] Curtis is notable for upholding his religious convictions by refusing to use a priest's testimony in court because he feels that exchange of information between a priest and his disciple is analogous to that of attorney-client privilege.
* BigScrewedUpFamily: The family of a former senator in a Season 17 episode. The senator and his wife (the senator's children's stepmother) violently abused both of their children. The elder sibling, the daughter, in turn, abused her younger brother. When they grew up, the brother became a drug addict, so the senator chained him to a radiator. The daughter married an abusive husband, after which she couldn't take it anymore and [[spoiler: killed her stepmother]]. The senator, then, [[spoiler: kills the daughter and claims self-defense]]. Also, he admits his son to rehab in one of the best facilities in the world... [[spoiler: in Switzerland, so the son couldn't be subpoenaed to testify against him.]] [[{{Understatement}} Yeah, pretty messed up.]]
* BilingualBonus: Every cop duo in the franchise has at least one of the members (in almost every single case, the junior detectives) knowing Spanish semi-fluently. Det. Logan, Det. Curtis (obviously), Det. Green, and Det. Bernard all use this to their advantage.
* BlackBossLady: Lieutenant Van Buren
* BlackDudeWhiteDude: Robinette and Stone, respectively, for the first three seasons. A black and white detective pairing was included all the way from Season 10 to the end of the show (Green and Briscoe, Green and Fontana, Green and Lupo, Bernard and Lupo), with the sole exception of Season 17's Green and Cassady: a black dude and a white girl.
* BlackmailBackfire: The murder in "Blackmail" pretty much thrived on this.
** The perp [[spoiler: threatened his boss at gunpoint to have him pretend to strangle his girlfriend, and videotaped the act. The boss and the girlfriend were investigating into a TV personality's lesbian love affairs and desiring to publish it in the papers, but the perp had the idea instead to conspire with the two to blackmail the TV personality. When the girlfriend wanted out, the perp strangled her and used the videotape against the boss to keep him going along with the blackmail. It all backfires when the perp was accidentally caught in the reflection of the alarm clock in the tape.]]
** However, the boss [[spoiler: refuses to corroborate the video because doing so would make him plead guilty to blackmail. [=McCoy=], Cutter, and Rubirosa then use some prosecutorial... "encouragement" against the TV personality (yes, the prosecutors blackmail her, thereby compelling her to testify against the boss, backfiring the boss's own blackmail), and they're able to nail the perp.]]
* BlankSlate: In the episode "Tabula Rasa" (which actually means "blank slate" in Latin), a father [[spoiler: kidnaps and ruthlessly manipulates and indoctrinates his two daughters into obeying everything he tells them to do, by forcefully (but apparently lovingly) demanding that they follow his every order. He even does this to his new wife. Because of this, his wife and daughters have absolutely no opinions of their own and do everything by his calling, which makes him absolutely difficult to prosecute both for malicious endangerment and murdering a woman who uncovered this plot.]]
* BlondBrunetteRedhead: Dr. Rodgers, played by Leslie Hendrix, who is a natural blonde. She's a brunette in the beginning, a redhead in the middle, and a blonde toward the end of the series.
* BloodlessCarnage: Averted in the later episodes, as network television became more loose about regulations against displaying blood.
* BodyInABreadbox: In "Rapture", when Bernard and Lupo enter a suspect's house for questioning, they find a huge freezer in the living room. Opening it, they find the suspect's wife, who had allegedly gone missing years beforehand: the suspect said he hid it there for so long to remind himself of his sins.
* BrainBleach: Lots of female witnesses are very... open about their sex life when speaking to the detectives. This exchange, for example:
--> '''Green''': If it were the '50s, him and Sean wouldn't be ''living'' together.
--> '''Witness #1''': They weren't ''living'' together. Todd was gay, but... Sean was straight.
--> '''Witness #2''': ''Very'' straight... (''points to her breasts, which are hanging out of her revealing top'') He had a lot of friendly conversations with my boobs.
--> '''Lupo''': ...Ah. Huh.
* BrainsAndBondage: The very rich couples in "Stiff", where the husbands [[spoiler: use insulin to put their non-diabetic wives into shock, and then consensually rape them.]]
* BrandX: Played straight with the coffee cups the characters buy throughout the series, which are blue without any specific logo.
** Also with companies that [=McCoy=] prosecutes.
* BreadAndCircuses: A variant of this trope is played in "Chattel". A couple pulls off a [[spoiler: slavery ring involving young Haitian children coming to the country as unpaid servants, under the pretense that they were "adopted" by the families who brought them here. They justify this, both to themselves and the families involved, by claiming that they're rescuing these children from a dangerous society, they're not beating the children into working for them, and they're getting free work out of the deal (bread and circuses, much?). They justify this to the kids as well, by making them believe that they're receiving love and affection from the parents who adopt them, and one enslaved boy even lies in the grand jury room that he gets ice cream and video games (bread and circuses, much?) from his adoptive parents.]]
* BrickJoke: Oh, lots. Chalk it up to humorous writing.
** In "Merger", where one lawyer accuses Abbie of getting her panties in a twist. A little later, she approaches him after winning her appeal and says, "don't get a knot in your jocks."
** In one episode, where a refined gentleman calls Briscoe uncultured. Later, Briscoe makes a snarky remark at a department store owner, to which Green says, "Forgive my partner. He's uncultured."
* BrotherSisterIncest: In "Lucky Stiff".
--> '''Chad Klein''' (the brother): It's not like we're related.
* BuddyCopShow: The banter between Briscoe and Green in Seasons 13 and 14 really came the closest to this.
* BunnyEarsLawyer: Robinette, surprisingly. The episode "Custody" cast him as a hypocritical and downright dirty race-baiting attorney, but at the same time the episode demonstrated him to be a far more excellent and capable attorney than his time as a series regular permitted him to be.
** DoubleSubverted with Randy Dworkin. In all his appearances, he starts out by demonstrating himself as incompetent and making nonsensical, inappropriate jokes toward the judges. He subverts it by being an extremely effectual attorney, capable of delivering extremely prejudicial arguments to significantly sway the jury. However, while he delivers ruthless arguments, Dworkin subverts it by being fair, even sometimes conceding [=McCoy=]'s position.
*** When the court clerk introduces "the People vs. [[spoiler: Strelzik]]", Dworkin goes so far as to say, "I object, your honor! The ''People'' of New York? I'd say that's a bit prejudicial! Certainly doesn't mean ALL the people of this great state are against my client!" Makes him likable, if asinine, to say the least.
* ButNotTooBlack: Lampshaded in the intro of "Skin Deep", where a white cop eyes a mixed-race model in a cafe. His black partner says, "You like her because she has white features." The cop replies, "Yeah. Same reason why I like you."
[[/folder]]

[[folder: Tropes C-D]]
* TheCameo: JuliaRoberts in "Empire". She and Benjamin Bratt (Det. Curtis) were in a relationship at the time, so she played [[spoiler: a seductive witness to the detective.]]
* CassandraTruth: Used by a ''lot'' of suspects when asked why they didn't approach the police earlier: "[[PoliceAreUseless they wouldn't believe me]]." To varying shades of truth.
* CardboardBoxHome: Multiple episodes deal with the homeless, some of who live in the "traditional" cardboard box.
* CastCalculus: Two [[PowerTrio Power Trios]], for both the ''Law'' and the ''Order'' parts, which mirrors the MixAndMatch nature of the series. The ''Law'' trio consists of the senior detective (sometimes a sergeant), the junior detective, and the lieutenant of the 27th precinct. The ''Order'' trio consists of the Executive Assistant District Attorney, his Assistant District Attorney, and the District Attorney of the Manhattan Borough.
* CaughtOnTape: Interestingly subverted in "Tragedy On Rye", where three black man are caught on tape taking a TV from a dead woman's apartment, [[spoiler: and are sentenced to the death penalty for her murder. And they didn't do it. Thankfully, they're released only a few days after the conviction.]]
* CaughtWithYourPantsDown: In "Shangri-La". Taken to egregious levels of idiocy when the defendant's (a high school teacher) lawyer asserts that just because his client was caught half-naked with his teenage student, doesn't mean that they were necessarily having sex.
* ChainOfDeals: The actions behind the central crime in "Kid Pro Quo".
* ChekhovsGun: If a minor detail is ever made mention of during the episode, you can expect that it will somehow surface later. For example, when Connie is interviewing the [[spoiler: Mexican mother of a young hit-man,]] she casually asks about the dish the mother is cooking. Later, when trying to convince the boy for a plea agreement, [[spoiler: she asks the mother to cook some of the dish in order to emotionally remove the boy from his cold, killer's exterior.]]
* ChineseLaunderer: Lots of Asians are portrayed as owning laundromats.
* ChocolateBaby: The victim's son in "Blood". Because both the victim and her husband appear completely white, the police obviously suspect an affair; but it's completely subverted when [[spoiler: the husband turns out to actually be black, with extremely white features.]]
* ChokeHolds: A ex-military man upset at a [[AssholeVictim Jerk Pacifist]] mocking his dead soldier son employs a sleeper hold blood choke. It leaves telltale bruises over the victim's carotid arteries.
* ChurchOfHappyology: At least twice -- the first time it was disguised as a series of financial seminars (although it started out as a religion), the second it was a straight cult based on Scientology [[spoiler: although it turned out they weren't behind the murder in that episode]].
* ColdCash: Lampshaded in "Purple Heart", where Det. Logan searches a freezer and finds cereal inside. After sarcastically wondering "you know anybody who eats their cornflakes frozen?", he dumps the box out to find a huge wad of cash.
* ColdOpening: Up to around Season 18, the opening showed witnesses (very rarely, even the killers themselves) happening upon a body, usually involving a SeinfeldianConversation. In the later seasons, the opening showed the victims hours, minutes, or days before their deaths, to foreshadow the circumstances around their killing.
* ColourCodedForYourConvenience:
** In the title sequence the pictures of the detectives are all blue and the lawyers are all red.
*** Done intentionally. The American flag is shown in the opening title sequence; between the blue and red title cards, there are black and white, sometimes gray, pictures of the accused and their trials. This symbolizes the various shades of gray between justice, and the struggle the officers of the court face in maintaining the integrity of the American criminal justice system.
** The dreaded "motion" papers from the defense are usually blue.
* CommutingOnABus: Robinette. A good case can be made for the recurring judges throughout the series, such as Judge Bradley, Judge Scarletti, Judge Solomon, Judge Feinman, etc.
* ConfessInConfidence: What attorney-client privilege entails. However, there are limitations: 1) if a client must testify under oath, a lawyer may not suborn perjury, or knowingly tell his or her client to lie; 2) a lawyer can't aid or abet an ongoing criminal act, which means that if his client is continuing to do something illegal, he is legally and ethically obligated to report the crime; 3) the lawyer also can't suppress any statement his client willfully makes provided that it was done legally or in good faith.
** "Murder Book" plays with the first limitation. A client [[spoiler: clearly committed a murder, but was acquitted; after the fact, he downright admits to it in a book, similar to OJ Simpson. [=McCoy=] preempts a confession by asking him whether the content of the book was true, which the client says it's not. The lawyer basically suborned the perjury, and while [=McCoy=] isn't able to prove that the lawyer knew about it, he's able to hang the defendant using his previous crime.]]
** "Past Imperfect" involves the second limitation. A lawyer takes in his client's [[spoiler: bloody shirt, which makes him guilty of this, and he thus has to testify as to everything his client may have done or told him.]]
** In "Family Friend" the third limitation is addressed. A client basically admits to [[spoiler: killing a man in cold blood, but withdraws it at the advice of his counsel. He lies on the stand in order to distract the prosecution by implicating a slew of convicts and criminals.]]
* ConspiracyTheorist: In "Absentia," a guru on trial for murder claims that the government is framing him ... and also that the government killed John Lennon.
** The defendant in "Blood Libel" claims that the Jews are framing him. [[spoiler: Plus, he gets a Klan lawyer to defend him. The jury grants a mistrial.]]
** See John Munch, below.
** Robinette, regrettably, became a Black Militant variant on the three occasions he guest starred.
*** Although DA Adam Schiff says, "You won't find Paul Robinette hawking bean pies for Louis Farrakhan."
* CoolOldGuy: Max Greevey, Lennie Briscoe, Jack [=McCoy=].
* CorruptCorporateExecutive: Anyone running a business larger than a neighborhood deli may be portrayed as this, whether they're actually guilty or not. Particularly evident regarding anyone who works in the health care or health insurance fields.
* CorruptPolitician: Often a victim, a murderer, or a conspirator.
* CounterfeitCash: Invoked in some cases where police plant marked bills, which are currency notes marked with a certain identifying feature to trace the passage of them through money laundering schemes or drug/prostitution rings.
** Played with in "Narcosis", where [[spoiler: cops who went in undercover as patrons at a certain brothel perform a sting operation at the brothel. When looking for the marked bills, they cannot find them; it turns out that the owner of the brothel (who later becomes the victim of the crime) was smart enough to recognize that the bills were incriminatory. So, the police fake the marked bills in full view of the camera, and the corrupt police commissioner in charge of the investigation uses the tape to keep insurance against the cops.]]
* CourtroomAntics: Frequently. DisregardThatStatement and ThatWasObjectionable in particular occur innumerable times.
** Some defense lawyers dress or have their victims act in a certain way to prejudice the jury. One defense lawyer, while defending a homeless man, keeps him in his dirty clothes in the courtroom to invoke pity for her client. Another one, while defending a man with Alzheimer's, refuses to medicate his client so that he shakes throughout the trial.
* CPRCleanPrettyReliable: A lot of episodes involving CPR show the ones who administer the procedure whaling away at a suspiciously pillowy body. Chalk it up to low funding for such scenes. Other than for that, it's somewhat realistic; for example, Lupo and some cops express disgust that Bernard tries to revive a guy who shot four cops in "Four Cops Shot".
* CrisisOfFaith:
** At the end of the episode "Under God", Jack explains to Serena the reason behind his bitterness toward religion. A boy Jack says he used to tag along behind like a puppy, Tommy Sudor, died in a VA hospital during the Vietnam war. A couple of days before Tommy's death, two priests approached the boy, who was in a lot of pain, and asked him to do a death bed recantation of his sins. Tommy replied, "What difference would it make?" When Tommy and Jack were left alone, Tommy turned to Jack, smiled briefly, and said, "God forgive me if I'm wrong." Jack then laughs to himself about the irony, that he's still like a puppy, tagging along behind Tommy long after he died.[[note]]In other words, Jack is laughing at the fact that he prolonged his friend's legacy for decades, to the point where he has so much faith in his friend's "crisis of faith".[[/note]]
** Connie's views toward abortion and religion shift rapidly as her time on the show progresses, culminating in "Dignity".
* {{Crossover}}: Several with its own spinoffs, as well as with ''Series/HomicideLifeOnTheStreet''.
* CruelAndUnusualDeath: Oh, tons. One includes [[spoiler: a husband suffering a heart attack after writhing in pain because his wife castrated him for cheating on her (04x17)]]; another involved [[spoiler: a movie producer hacking his wife to death while she was still alive because she interfered with his career (07x15-17)]]; yet another had [[spoiler: a deliveryman mauled by teenagers who didn't want to pay for Chinese takeout, and then one of the guys whacked him ruthlessly over the head with a cement block while the man choked on his own blood (11x12)]].
* CrusadingLawyer: The lawyer in "Bodies". In it, [[spoiler: he withholds the disclosure of his pedophilic, rapist client's bodies of his victims. Even after [=McCoy=] prosecutes him successfully, he still refuses to give the bodies. Even Serena, who hated the guy from the start, respects him.]]
* DawsonCasting: Invoked strangely in "Shangri-La", both in-universe and in the context of the episode. The murderer [[spoiler: (played by an actress who was 21 at the time), a 26-year-old woman, continually reinvents herself as a 16-year-old ''three times'' in order to relive the life of a high school girl. It's also subverted, when it's revealed that the character applies heavy makeup to make herself look younger.]]
* DayInTheLife: 4x17, Mayhem, which included a clock in addition to the usual scene-change cards.
** 13x23, Couples, has no less than four murders, including a [[CallBack very direct reprise of one case from Mayhem.]]
* DeadMansChest: Trunks of abandoned cars are very popular.
* DeadManWriting: In at least one episode, where a murder victim [[spoiler: left video evidence to clear his best friend of the crime.]]
* DeadpanSnarker: Actually pretty common among the cops. Notable examples include Mike Logan, Lennie Briscoe & Ed Green.
** They're not the only ones. The attorneys also get their fair share. See SchiffOneLiner.
---> '''[=McCoy=]:''' What can I say? Turns out, no one's made of steel, not even with a 160 IQ.
---> '''Serena:''' And neither are you.
** There is also a balding arraignment judge who loves dealing out the wisecracks with his decisions.
* DealWithTheDevil: [=McCoy=] does this a ''lot'', notably in "Fools For Love", before subverting the deals completely. He makes a deal with a girl that she would testify against her boyfriend (which damns him to 25-to-life) in exchange for her getting three to four years in prison for crimes they co-conspired. When [=McCoy=] asks her [[spoiler: to testify about her involvement in the crimes in the allocution, she thinks that she's home free and thus talks about all the vicious crimes she committed. [=McCoy=] exploits the sympathy of the judge enough for her to declare the three to four years insufficient, and [=McCoy=] is able to retry her for a much higher sentence.]]
* DeathBedConfession: One of the few hearsay exemptions. Usually played for drama when it shows up. A notable example is [[http://tvtropes.org/pmwiki/pmwiki.php/Recap/LawAndOrderS16E3Ghosts "Ghosts"]]: A mugger, shot by a cop, confesses to a murder Detective Fontana worked on 10 years earlier, and thought he had solved.
** Subverted in "God Bless The Child", where parents refuse medical treatment for their daughter due to religious convictions, which results in the daughter's death. Their housekeeper says that [[spoiler: the daughter asked for a doctor a few hours prior to her death; however, because the daughter didn't have direct knowledge that she was going to die, the confession is not admissible.]]
* DecidedByOneVote: Not by one vote, but 200. In "Deep Vote", a certain candidate [[spoiler: has a mechanic to tamper with certain voting machines in a certain district which would vote against her, so that the public could vote using paper ballots... then has those paper ballots hidden, so that the district's votes remain suppressed.]]
* DesperatelyCravesAffection: "Just A Girl In The World" involves a FemmeFatale [[spoiler: sleeping with a ton of men - including Det. Lupo - and malingering illnesses to gain their trust. She takes this act UpToEleven when she downright accuses the judge at her murder trial of desiring sexual favors from her. Cutter responds by off-handedly mentioning to her as the trial is about to reconvene that he'll help her, but instead turns her history of cheating on men against her to denounce her credibility. She turns into a total slut on the witness stand, touching herself and telling Cutter that she needs him. At the very end of the episode, she is shown seducing a prison guard: after being convicted of at least 25 years to life.]]
* DeusExMachina: "Memo From the Darkside", which has [[spoiler: Cutter making a compelling argument against an attorney's government memo, which outlined and justified torture to soldiers in Abu Ghraib and Guantanamo. Cutter's (and [=McCoy=]'s) plan is to not only use the memo to establish motive for the murder of a former soldier, but to implicate the entire Bush Administration for bad acts committed during the Iraq War. However, right before the verdict is read, the Obama Administration saves the attorney by using a mere notice to transfer him to federal court, rendering the verdict and all of Cutter's acts invalidated.]]
* DisguisedInDrag: The defendant in [[spoiler: "Hands Free", who actually did this for ten long years.]]
* DisregardThatStatement: Attorneys use this to their advantage. While interviewing a witness, they ask an inappropriate question or make a baseless assertion before withdrawing it, so that they can sum up a testimony for a jury. And, depending how lenient the judge is, they do this multiple times in a single cross-examination without the fear of being cited for contempt.
* DeusExScuseMe: The show does this a lot. Pick a series, pick an episode, someone answers their cell and walks out of the scene.
** Except those episodes that predate cellphones being common...of which there are several seasons worth.
* DirtyCop: Occasionally a bad guy was a cop on the take. The show even dealt with the possibility that some main characters were dirty.
** Captain Cragen wore a wire to prove he wasn't.
** The show ''heavily'' implied that Fontana might have been dirty. His clothes were way too nice and he had way too much money. [[WhatMightHaveBeen If he had been around longer]], they might have explained that.
** Lennie Briscoe also let some people think he was dirty so they'd be more willing to talk. Also, he got the occasional free lunch out of it. That sort of thing [[CharacterizationMarchesOn only happened a few times]], though.
** The prosecutors weren't exempt from this trope either, as there were several episodes focused around hearings regarding [=McCoy=]'s alleged wrongdoings in the District Attorney's office. Also, Serena almost loses her badge: see NoGoodDeedGoesUnpunished for more details.
* DisappearedDad: Often. As victims, as criminals, as {{Freudian Excuse}}s, and as main characters.
* DisproportionateRetribution: Hoo, boy, Carla Perrazo in "Couples". She kills her husband by [[CarFu repeatedly running him over with her car]] not for "his cheating" or "his perversions," but because, in her words, "I don't go under the knife for anybody.". *points at her boobs with her thumbs* "THESE were good enough for him when we got married!"
* DivorceIsTemporary: In "Love Eternal", which involved a plot by three husbands to [[spoiler: defraud their wives by making seemingly bogus investments (in comic books and homes) that actually entailed huge payoffs. After they would divorce their wives, the husbands would sell the items and make big bucks so that their wives couldn't touch a single penny. One of the husbands actually was in love with his wife, however, and planned on actually remarrying his wife after divorcing her, which would blow the whole scheme into shreds. This resulted in his death.]]
* DoNotPassGo: In "Blaze", 23 people die after a fire breaks out in a facility where a rock concert occurs. The detectives are disgusted by the fact that the owners of the facility would only have to pay two fines for building code violations (having no sprinklers inside, not having accessible exits), when those violations directly caused so many fatalities.
--> '''Briscoe''': 23 people dead. Someone's gotta do more than just pay a couple of bucks.
--> '''Random Cop''': If you ask me, they should go right to the needle. Do not pass go, do not pay two hundred dollars.
* DraftDodging: A number of Vietnam war episodes deal with this, notably "White Rabbit". [=McCoy=] is sympathetic toward this, because it's heavily implied that he was conscientiously against the war from its beginning. [[spoiler: Until he discovers that the draft dodgers in the episode actually pulled off a conspiracy to kill a cop.]]
* DramaticIrony: In "Bodies", the suspect's first attorney asks to be removed from the case because she feared her client. The judge said he would hand the case to Legal Aid, saying "They don't make enough to worry about ethics." His second attorney is arrested for refusing to tell the DA about the suspect's other victims, and is tried, defending himself by claiming he's standing by his ethics.
* DownerEnding: Every second episode.
** If there is a "happy" ending, you are still going to leave seriously thinking about some issue. If the ending isn't bittersweet, then the crime itself (or situations linked to it) was horrible. Season 10 was particularly bad about this, with about half the episodes ending with some less-than-satisfactory conclusion.
** Paul Sorvino's (Det. Cerreta's) second to last appearance (his final appearance as a regular), before being put on a bus, in the episode "Prince of Darkness". [[spoiler: Pretty much every witness involved in the case is ruthlessly murdered by the Columbian mob. Cerreta himself is non-fatally shot by an arm's dealer, who was then murdered in a prison yard. The Columbian mob gets away with the entire crime, especially after tying every single loose end: including the daughter of the victims in the beginning of the episode.]]
** "Damaged." Judge William Wright [[spoiler: overturns a jury's guilty verdict against three boys accused of raping a mentally disabled girl with the reasoning that [=McCoy=] hadn't been able to prove the state's case. Wright and all three of the boys pull a KarmaHoudini of sorts, with the implication that the boys would continue having sex with girls at their school.]] Also, Lenny's daughter [[spoiler: is murdered after testifying against drug dealers (Even worse, the case against the drug dealers ended in mistrial... although the next season would briefly revisit this issue, with a somewhat worse ending for the drug dealer).]]
** "Aftershock," one of the rare episodes that focused more on the characters' personal lives. [=McCoy=], Kincaid, Briscoe, and Curtis witness a state execution, and they all react in different ways. [[spoiler: Curtis cheats on his wife, and Briscoe and [=McCoy=] go out drinking to reflect on their family. [=McCoy=] calls Kincaid to pick him up, but leaves before she gets there, and Kincaid ends up giving Briscoe a ride home. On the way, they are struck by a drunk driver, killing Kincaid instantly.]]
** CollegeHumor lampshades this, facetiously asserting that the "cancerous" Law & Order franchise feeds off of depressed old people sitting in front of their TV sets, waiting for endings like these.
* DramaticGunCock: Hammer-cocking sound happens with every time a cop's gun gets pulled, including Smith & Wesson Model 36 revolvers, which do have hammers, and even including Glocks, which have no hammer to cock in the first place!!
* DroppedABridgeOnHim: Poor [[spoiler: Kincaid and Borgia]]
* DroppedAfterThePilot: Roy Thinnes (as D.A. Alfred Wentworth) appeared in the pilot, "Everybody's Favorite Bagman." When it came time for the series to go into production, Thinnes was unavailable, working on a revival of ''Series/DarkShadows''. So the role was renamed ("Adam Schiff") and recast (Steven Hill). There was no on-screen explanation for the change, which really confused viewers when NBC inexplicably aired the pilot as the ''sixth'' episode. Especially when Steven Hill is credited in the opening titles, but Roy Thinnes appeared as the DA.
* DudeWheresMyRespect: Lampshaded multiple times by the detectives. Logan says this when his and Briscoe's car is ticketed because they didn't pay the meter. In another case, Briscoe and Green have to fork over $12.50 for evidence in a photo development store.
[[/folder]]

[[folder: Tropes E-H]]
* EagleEyeDetection: Lampshaded by a defense lawyer when the detectives detain a certain suspect because they are able to see, from a subtle lump in the suspect's waistband, that he is carrying a gun. Both the arrest and the gun are thrown out of evidence.
* EagleLandOsmosis: Lampshaded by defense lawyers in "Blue Bamboo", who claim that since their witness wasn't Mirandized in Japan, any statement she made there is invalid. It doesn't help that they turn to extremely bigoted arguments to justify their opinion.[[note]]American Civil Rights 101 dictates that ''you can't assume that just because you're an American, you can enjoy the same rights anywhere in the world.''[[/note]]
* EarlyBirdCameo: A detective in "Justice", a Season 10 episode, later becomes the central character in "Vendetta", a Season 14 episode.
** In "Justice", a certain judge, Wolinsky, back when he was a prosecutor, [[spoiler: intentionally disregarded evidence which led to the wrong man being convicted for the crime. [=McCoy=] issues a hearing against Wolinsky in hopes that he would then admit his crime and go after the correct man, but fails to convict him. The aforementioned detective gives special evidence to [=McCoy=] after the hearing, so that [=McCoy=] can then plead the true murderer out and refile charges against Wolinsky, while the detective keeps his own identity anonymous.]]
** In "Vendetta", the detective, whose name is revealed to be Kenneth Daniels, turns out to have, out of desperation, [[spoiler: planted evidence which led to the conviction of the wrong man, Grimes, in a certain murder. Daniels did this because his own actions prevented him from pursuing the correct case against Grimes, which was for a similar murder. The show's creators may not have intended this, but his actions in "Justice" preempted his actions in "Vendetta": as a cop who tries to avoid involvement in cases of law enforcement corruption.]]
* EmotionalTorque: Dick Wolf cited in an interview that one of the things that sustained the show was to put someone emotionally connected to the victims somewhere in the first half of the episode. This allowed viewers to continue their emotional attachment to each victim or character.
* EmptyCopThreat: Briscoe loves these. It gets him and the police department into trouble sometimes; in one episode, a forensic report failed to put a certain suspect's DNA at the crime scene. Van Buren then suggests to the detectives that they should ''lose'' the report for an hour or so, and bluff to the suspect that the report most probably has his DNA at the crime scene.
** However, cops ''are'' authorized in using certain forms of deception to get certain pieces of evidence or testimony. In "Paradigm", the suspect refuses to give a DNA sample, so the cops mail her an envelope containing a form she supposedly "needed" to fill out, and when she mails it back, she licks the stamp on the envelope. Since the suspect willfully forfeited her DNA, the police are allowed to use it against her.
*** But they can't take it too far. In "Tango", Lupo writes a note to a suspect saying [[spoiler: "think a bitch can rat me out?" to have her lead them to another suspect. A judge, however, releases the suspect because the police cannot place anyone under the threat of bodily harm.]]
* EmptyPromise: Det. Green is always conflicted between giving false reassurances to parents whose children are kidnapped. In "Red Ball", he refuses to conclusively tell a woman that her young daughter will surely be found; the daughter is found alive. However, in "Tango", he tells parents that they ''will'' find their teenage daughter, and Lupo even calls him out on this; and surely enough, the girl is found raped and murdered.
* EnhancedInterrogationTechniques: By Detective Green in his first two episodes, "Gunshow" and "Killerz".
** In the former episode, [[spoiler: he interviews a suspect who blindly shot at women from a certain medical school. Det. Green goes so far as to tell the suspect that "there isn't a day that bitch [Lt. Van Buren] doesn't ride up my ass" just so he can relate to the suspect's misogynistic tendencies enough to make him comfortable enough to elicit a confession out of him. Due to some variant of HollywoodLaw (see below), the confession is thrown out because it doesn't establish enough so-called "probative value."]]
** In the latter episode, [[spoiler: Lt. Van Buren tries to preempt this by allowing a thirteen-year-old girl's mother to view the interrogation behind a one-way glass. Det. Green calls the girl the "next Mia Hamm" and overall makes the girl feel comfortable enough, even holding her hands, to get a confession out of her. However, that gets thrown out as well because the girl's defense lawyer is able to prove that Green established an overall feeling of coercion that's impermissible in court.]]
* EveryonesBabySister: The series tends to do this with the Assistant District Attorneys. We've only really seen it played out with [[spoiler: Claire Kincaid and Alexandra Borgia but it did play out with both of them.]]
* EvilFormerFriend: Nearly every time an old and trusted friend of one of the main characters is connected to a case, said friend will end up, at best, being marginally involved in the crime and, at worst, being the actual criminal. This trope has been used in the series as far back as the original pilot, "Everybody's Favorite Bagman": [[spoiler: Robinette's mentor, who convinced the ADA to become a lawyer in the first place and supported black communities throughout New York, actually ends up being neck-deep in a huge corruption scandal involving a murdered city official being a bagman.]]
* EvilLawyerJoke: Lennie pulls one on Claire. It turns out to be a FunnyAneurysmMoment when [[spoiler: she dies later that night.]]
--> '''Lennie''': How come California have the most lawyers while New Jersey has the most toxic dumps?
--> '''Claire''': (''sarcastically'') Because New Jersey got first pick.
* EvolvingMusic: The series all has the same ''CHUNG CHUNG'' sound and theme tune, but each show has its own spin on the tune. The original's theme was also cut down at the beginning of the fourth season.
* ExactWords: Comes up here and there, but an interesting version is in the tenth season episode "Panic", where a novelist swears up and down that she was not having an affair with the husband of an FBI agent. [[spoiler: because she was having an affair with the [[HoYay agent herself]]]].
** The most prominent example of the "good guys" using this trope is in "The Serpent's Tooth" (S1-E19): Ben Stone secures the testimony of a Russian gangster in exchange for full immunity. When he has the gangster arrested immediately after his testimony, Stone reminds him and his lawyer that [[spoiler: he promised them immunity in "New York ''County''" (Manhattan), not "New York ''City''". The cops that arrested him were from Kings County (Brooklyn).]]
--> '''Stone''': Next time, sir, get a better lawyer.
* ExpositoryHairstyleChange: The major one being [[spoiler: Lt. Van Buren's hairloss due to cancer, which leads to a new wig/hairstyle, and then reveals her real hair for the first time in the series]].
** This is around the same time Lupo & Bernard ditch the PermaStubble. This actually happens because Van Buren tells Lupo & Bernard to "look in a mirror" sometime and shave to appear more professional. In the next episode, "Steel-Eyed Death", when Lupo & Bernard shave, Lupo is seen looking in a mirror in one scene because he actually felt self-conscious when Van Buren told him to look more professional. [[spoiler: It turns out that Lupo was obsessed with looking more professional because the current case reminded him of one he handled ten years ago, the grotesque nature of which made him turn toward alcohol addiction and nearly ruined his career.]]
* {{Expy}}: Any characters [[RippedFromTheHeadlines based on real people]] will generally be compared to the real thing, e.g. "she's nicer then Ann Coulter" or "he stole more than Bernie Madoff".
** Adam Schiff was the expy of Robert M. Morgenthau, who was the RealLife District Attorney throughout the series' run, with the exception of Season 20, when he retired. Morgenthau was reportedly a fan of Schiff's character.
* ExtraYExtraViolent: In "Born Bad", a lawyer argues that his client should not be found guilty since his extra Y chromosome predisposes him to be violent.
** This [[GoneHorriblyRight goes horribly right]] when the client buys into his lawyer's defence so much, that he [[spoiler: asks to be sent to prison for life, despite only being a teenager.]]
* FailingATaxi: At the end of the episode "Rage".
* FallenHero: [[spoiler: Det. Green]], sadly, although it's to a lesser extent to what the trope may imply. [[spoiler: He covers up his girlfriend's gambling addiction (and, consequentially, his own) by pursuing a certain bookie to shut him up, and he ends up killing the bookie when he targets the detective's girlfriend. Green then completely covers up the fact that his girlfriend was involved and nearly goes to jail for murder to protect her. In the end, he is slapped on the wrist for justifiable defense and is fired from the precinct, and he is forced to swallow his pride.]]
* FakeGuestStar: Leslie Hendrix as Dr. Elizabeth Rodgers. She's been in the original series for more seasons than any current cast member: 137 episodes over 19 seasons. She started in Season 2.
** John Fiore as Detective Tony Profaci. He appeared in 53 episodes over the first nine seasons, and even reprised his role on LastWeekTonightWithJohnOliver, in the episode "Civil Forfeiture".
* FakeOutMakeOut: A less intense version of this where Connie and Lupo have to sell the fact that they're a married couple as part of an undercover investigation, so Lupo kisses her on the cheek.
* FalseDichotomy: Defense lawyers and prosecutors are equally guilty of this.
** A defense lawyer in "Phobia" uses this [[spoiler: when her client attacked and killed his son's legal guardian to forcibly regain his son only after he discovered that the adoptive parents were a homosexual couple. The lawyer paints her client as a law-abiding, non-homophobic man, and claims that "either you find my client innocent of merely righteously claiming his son[[note]]which would then entail that all homosexuals are incapable of righteously applying for custody[[/note]], or you find him guilty of something he didn't intend[[note]]Which is completely circular argument: "My client is innocent because he's a good man, and vice-versa"[[/note]]."]]
** Cutter establishes a false dichotomy in "Great Satan". [[spoiler: The police supplied fake bomb-making equipment to terrorists, who then used it to try to blow up a synagogue. However, this preempts a real bombing of a synagogue just a few blocks away, which the terrorists didn't know about. Cutter argues that "either these terrorists are guilty of intent to kill[[note]]Which they are, but Cutter tries to specifically nail them for the other bombing they didn't know about too[[/note]], or you'll let terrorists who went through with everything just walk away[[note]]when an affirmative defense can be made that the police coerced this intent![[/note]]."]]
* FateWorseThanDeath: For the few defendants that get Not Guilty verdicts, they find they have to live with the consequences of the damage they've done.
* FauxYay: Lupo's done this on at least two occasions to nail down certain witnesses. Much to his chagrin.
** In "Political Animal", he pretends to solicit oral sex in the bathroom of a department store to get information about a senator, and it turns out that the person he catches [[spoiler: was, in fact, the senator.]]
** In "Sweetie", he pretends to be a gay trucker [[spoiler: to catch a man who was a prostitute at truck stops.]]
* FelonyMisdemeanor: The shows occasional treatment of minor felonies - particularly upscale prostitution.
** Sometimes prosecutors use it to their advantage. New York has a "three strikes" law, where after three felonies, no matter how minor, the perps face huge jail time, sometimes even life in prison. In cases where perps have committed two felonies and pleading guilty to a third one would be disadvantageous, they decide to give the information the cops want in exchange for pleading to murder, which, ironically, entails a reduced charge.
* FellOffTheBackOfATruck: Either used and promptly mocked by the police, or the police use a line along the lines of "where did you get it, did it fall off the back of a truck?".
* FigureItOutYourself: A lot of episodes involve the police having to convince certain people that their loved ones were truly capable of committing a crime. Sometimes they use the naive loved ones to catch the criminals by having them figure out for themselves the capability of their loved ones of committing the crime.
** "Hindsight" involved the son, whose mother is suspected of killing his lover, participating in a [[spoiler: fake hostage situation. He points an unloaded gun at Nick Falco, the original suspect in the murder, and the police call his mother over to "straighten out the situation", when Falco, of course, was in no danger at all. The mother then confesses to the murder; as the police are handcuffing her, the son tells her that he only participated in the hostage situation to take remove suspicion from her.]]
** "Mad Dog" provided an interesting, if tragic, deconstruction of this trope. A rapist who was convicted of six sexual crimes and in suspicion for seven others is paroled in the beginning of the episode. He then rapes and murders a young woman, and leaves absolutely no evidence for [=McCoy=] to prosecute the case; [=McCoy=] then puts 24 hour surveillance on the rapist and drags the man's name through the mud throughout the entire state of New York and Ohio. However, the rapist never admits the crime. It's only after [[spoiler: the rapist's daughter, who never believed that he committed a single rape, takes him to a friend's house to test his urges, and her father tries to rape the friend that the daughter realizes just what kind of man her father is. The daughter then kills her father.]]
* {{Flanderization}}: At least two of the times that Paul Robinette appeared on the show after his departure he is demonstrated to be a borderline black militant, conspiracy theorist defence attorney. Robinette was pro-Black when he was a regular, it was even a significant part of his character, but he never took this character trait to almost ridiculous extremes until AFTER he left.
** Explained by Paul himself at the end of one episode after his departure as ADA: "Ben Stone once said I'd have to decide if I was a lawyer who was black or a black man who was a lawyer. All those years I thought I was the former. All those years I was wrong."
* {{Flatline}}: The final scene of Season 7, where Adam [[spoiler: terminates life support for his wife. He has the most heartbreaking "MyGodWhatHaveIDone" look in his eyes.]]
* AFoolForAClient: Defendants represent themselves an average of once every other season. Interestingly, of the guilty ones, not one of them ever gets away with their crime. The ones who are guilty and acquitted invariably either die or go down for another crime before the credits roll.
* ForGreatJustice: Subverted sometimes. Despite the implications of the show, most people in the criminal justice system, even the main characters themselves, are fallible and resort to stroking their own ego when pursuing or dropping charges upon certain criminals.
** Usually when [=McCoy=] goes on a tirade about how he "owes the People of the State of New York an ''obligation'' to put away a murderer", he's usually talking about an obligation to his own ego.
* FramingTheGuiltyParty: See the ThanatosGambit example.
* FreakierThanFiction: Considering the show's episodes are based on RealLife cases, some things the people say, think, or do in some cases define conventionality. To a freaky extent.
* FourLinesAllWaiting: Season 8's Subplotapalooza. It was notable because each episode slightly progressed or gave a glimpse of each character's subplot, still making the episodes rerun friendly.
** Lt. Van Buren sued the police department for promoting a white woman less qualified than her. We get glimpses of this throughout the season, and it's resolved when the captain demands that she should resign. In the first episode of Season 9, she grudgingly admits that it was all for naught.
** Lennie's daughter was arrested for a drug charge, and the ADA in charge of her case didn't want to look like he was favoring a detective's daughter, so he charges her with the highest available sentence. In exchange to reduce her sentence, Lennie convinces her to participate in an undercover operation against a drug dealer, which is successful after the dealer is arrested. However, the prosecutor in charge of the case is very weak, and the dealer is acquitted and [[spoiler: kills Lennie's daughter.]] In the first episode of Season 9, he gets news that [[spoiler: the dealer was shot.]]
** Adam faces reelection problems when his old friend and rival starts funding an incompetent young man to run against Adam, and starts accusing him of being weak and ineffectual. Adam thus becomes increasingly political as the season progresses, sometimes even forcing [=McCoy=] to pursue extremely higher charges for certain crimes. He is reelected, thankfully.
** [=McCoy=] [[[spoiler: hid a witness in one case]], and the end of the final episode of the season show him going to face the disciplinary committee. In the beginning of Season 9, it's revealed that he's acquitted, although his new ADA, Carmichael, still holds the charge against him.
** Jamie Ross, throughout both of her seasons, was shown to face numerous problems in getting custody of her daughter due to her asshole ex. Plus, she's torn by [=McCoy=]'s disciplinary charges, which leads to her leaving the DA's office at the end of the season.
* FunWithAcronyms: The show's research on the various parts of the NYPD is pretty accurate, so we get accurate acronyms for them. The crime scene guys are CSU, Crime Scene Unit; the anti-mob branch is OCCB, Organized Crime and Corruption Bureau, and the local equivalent of SWAT is part of ESU, the Emergency Services Unit.
* GameChanger: Two men riding the train together make a Devil's Pact: each would murder the other's antagonist, thinking the police would fail to connect them to their crimes. Their scheme almost worked [[spoiler: until detectives discovered the suspects routinely rode the [[StrangersOnATrainPlotMurder same train together]]]]. This game-changing fact moved the prosecutor's cases from iffy circumstances to roll-over confessions.
* GenreSavvy: Lots of suspects and witnesses, who claim that they've seen enough cop shows to know what's going on.
* GetOutOfJailFreeCard: One murderer asks for this in exchange for [[spoiler: ratting out his father for three murders.]] The father, in turn, [[spoiler: asks for this in exchange for a possible terrorist.]] When [=McCoy=] realizes that the [[spoiler: father and son teamed up to drive him into a corner, he decides instead to prosecute the son for a felony, which, according to the "three strikes" rule, would put him in jail for life. The son then testifies against his father for real.]]
* GloryHound: If there's ever a conflict between police departments over jurisdiction to investigate and prosecute, this is the main motive.
** Taken to egregious levels in "Bronx Cheer", where the Brooklyn D.A. disallows the NYPD from investigating a murder that occurred in Brooklyn, because he was convinced that his police were completely correct in their judgment when, in fact [[spoiler: they sentenced an innocent kid to jail for twenty-five years. Not to mention that because of the Brooklyn D.A.'s obstruction, [=McCoy=] had to concede that the murderer plead to 7 1/2 to 15 years... '''FOR TWO MURDERS'''.]]
* GoodCopBadCop: This trope is very occasionally played straight, mainly because witnesses aren't idiots. However, you can often see this in the character dynamics, when detectives go out to interview witnesses.
** The senior detective (most often Briscoe and Fontana) would generally play the bad cop while the junior detective (Logan, Curtis, Green for seven seasons, and eventually Lupo) would play the good cop, with certain exceptions. The general premise is that the senior detective would be more adept at controlling his temper and would thus make sarcastic comments when interrogating witnesses, while the junior detective would play it more fair.
*** An aversion of this was Season 17's Cassidy, who repeatedly drove witnesses to hot-headed temper and would make them clam up, much to Green and Van Buren's chagrin.
* GoodOlBoy: Arthur Branch
* GoodGirlsAvoidAbortion: The victim of the Season 1 episode, "Life Choice", [[spoiler: was a perpetrator of the bombing of the abortion clinic; however, she stays in the clinic because she was considering having an abortion, too. Her vigorously pro-life family tries to cover that inconvenience up after the fact because they want her to remain, in their eyes, a martyr for the pro-life cause.]]
* GutPunch: At the end of the first part of "Refuge", where [[spoiler: the ADA helping Jack and Abbie in their case against a Russian mob is brutally murdered, along with a six-year-old boy who testified against the mob, and his mother.]]
* {{Hackette}}: [[spoiler: The hacker in "Narcosis" who steals a ton of credit card numbers.]]
* HanlonsRazor: Frequently averted by the police and D.A.'s. They generally assume the worst in people when they commit a crime, when in fact stupidity, not malice, fuels a lot of murders.
* HappyEnding: In the series finale [[spoiler: the school bomber is captured without loss of life and Lt. Van Buren's cancer is in remission; also skier Lindsey Vonn, who claims to have seen every single episode of the show, was the series' last guest star.]] Perhaps the only thing to regret is they never got around to a story on the Times Square Failbomber, but that's probably more of a ''Criminal Intent'' thing.
* HaveIMentionedIAmSexuallyActiveToday: Played straight with a lot of female witnesses toward detectives. Mostly Curtis.
* HeelRealization: The mother in “Captive" who found out that her child would [[spoiler: rather be raped than be with her and her {{Jerkass}} [[AbusiveParents boyfriend]]]]
* HelloAttorney: Every post-Robinette ADA.
** Even Robinette for some.
* HeroicBSOD: [=McCoy=] pulls one at the end of "Criminal Law", where he confronts a mass-murderer released from prison on the courthouse steps. [[spoiler: The mass-murderer's son then pulls out a gun and kills his father; at the end, [=McCoy=], who is visibly shaken, says, "I thought I was the target.]]
* HeteronormativeCrusader: Varying degrees of this throughout the series. There's one couple who expresses momentary disgust that their deceased son's half-naked pictures ended up on gay websites, but it's somewhat swept under the rug considering that they're mourning. In another, the parents yell at [=McCoy=] when he asserts that their daughter may have been a lesbian. In another, a bigoted politician murders his rival and takes a moral high ground in front of the jury.
* HeroicBystander: Occasionally there is a bystander who witnesses a crime who has the presence of mind to do things like accurately write down vital information like a license number of a suspect's vehicle. To the featured cops, this stuff is usually manna from heaven.
* HiddenWire: Notably Lennie in "Corruption", which is actually his (super effective) method of nailing the [[spoiler: corrupt cop.]]
* HideTheEvidence: Lupo & Bernard want to do this with a dead cop's logbook in "Four Cops Shot", which implicates [[spoiler: her and her dead partner in using unauthorized informants. However, by finally giving it in at Van Buren's behest, Cutter is able to use it to prove that the cops' killer was solely motivated by greed.]]
* HollywoodLaw: The series frequently averts this, by being written very realistically. However, it's still subject to a few mistakes over 20 seasons.
** Too many examples to list, but whenever a judge tosses out evidence against the defendant early on during a trial to make the case that much harder for the prosecution, though the defendant will always get their just desserts in one way or another.
*** "Hubris": [[spoiler: a warrant is issued to search the suspect's apartment but the courier hasn't brought it yet. Knowing the suspect will get there before the warrant, Det. Green sticks a toothpick in his lock to keep him from entering. The courier arrives a few seconds later and the police bust in and seize a videotape of the murders. The judge tosses the tape since the police secured the area before they had the warrant (even though they had reason to believe he'd destroy the evidence and were well aware the warrant had been issued). Then the judge allows the defendant to do two things he shouldn't have: call an alibi witness to perjure herself and take the stand to testify on his own behalf. Not only were the tapes admissible to cross-examine both of them but the defendant was clearly guilty of perjury considering he was representing himself and had personal knowledge he was suborning perjury.]] It is also totally legal to secure a scene if there's a concrete possibility that the evidence will be removed, destroyed, or otherwise endangered before the search warrant arrives. What the police can't do is start poking around, looking in drawers and such, before the warrant arrives. [[note]]As an example, if the police had strong reason to suspect that a criminal had evidence on his computer, they could secure the location and prevent the criminals from touching it. They couldn't actually fire it up and look at the contents until the warrant arrived, though.[[/note]]
*** In "Gunshow," the season ten premiere, [[spoiler: a gunman opens fire on a crowd in a public park, killing over a dozen people. Once arrested, he confesses to the police. The judge in the case, however, excludes the confession on the grounds that the suspect's ''mother'' had told Lt. van Buren that she was calling a lawyer for her son, and that the police therefore had no right to continue the interview, since the suspect's right to counsel had been invoked. The problem is that the suspect was '''not''' a minor, and, as such, his mommy could not invoke his right to counsel for him. If he was properly [[MirandaRights Mirandized]], and did not invoke his right to an attorney, nor his right to remain silent, then the police had every right to continue questioning him.]]
** In "Patient Zero," a man is charged with [[spoiler: killing his mistress's child (dosing them with stolen SARS virus that she survived). His wife testifies that she was with him at the time, but breaks down on the stand and changes her story a couple of times. Outside the courtroom, she admits that she was deliberately playing the jury, and the jury returns a not guilty verdict because they can't be sure what the truth is. [=McCoy=] and Southerlyn watch the husband and wife walk out of court hand-in-hand, and are apparently so bewildered by their defeat that they completely forget they have an iron-clad case for perjury against the wife. Not to mention completely ignoring the handful of felonies the husband committed in getting the SARS virus to begin with.]]
** It's worth noting that a large number of homicides, unfortunately, remain unsolved, and anyone with the detectives' consistency in the series must be extremely, extremely lucky. A lot of leads tend to die out, and with the detectives' caseload, a lot of evidence or information tends to go missing. The rate at which ''Law & Order'' finds and convicts criminals, in short, is kind of unrealistic. Nevertheless, it makes for extremely good storytelling.
** By the same blade, the number of cases that do go to trial is very slim; in real life, over half the cases in the series that reach a verdict would be plead out beforehand. In addition, the trial process is extremely rigorous and not always as straightforward as shown in the series; very few surprises would be sprung upon the opposing counsel, and even clear-cut trials and investigations would be too massive to sort through by just two [=ADAs=].
** In one episode, Rey and Lennie lament the fact that they cannot arrest a man for [[spoiler: killing his daughter's beloved horse]] for the insurance money, as he has technically committed no crime (he withdrew the insurance claim on the horse's life and, therefore, cannot be prosecuted for insurance fraud.) Um, I'm pretty sure cruelty to animals IS a crime...
* HomosexualReproduction: Taken to absolutely head-spinning levels in "The Taxman Cometh". [[spoiler: One lesbian (Catherine) uses her egg to conceive a child in vitro, but uses her partner (Louise) as the surrogate. Also, prior to the events of the episode, Catherine had legally been Louise's mother because New York hadn't legalized gay marriage, so Catherine had adopted Louise has her child so they could have family rights. For this reason, the daughter Louise is pregnant with had, at one point, been both Catherine's daughter and granddaughter. Making inheritance issues really, really complicated.]]
* HonorBeforeReason: Stone, [=McCoy=], Cutter and Adam Schiff have all had their moments, generally paired with an effort to gain JusticeByOtherLegalMeans. An occasional variant is the refusal to hand off a case to a different jurisdiction (who would have a stronger case or stronger punishment) because "they have a responsibility to the people of New York" to try the case there.
* {{Horrible Hollywood}}: Taken to almost reflective levels in "Everybody Loves Raimando's", where Hollywood's romanticized portrayal of Italian mob families (TheGodfather is cited as being guilty of this) directly results in [[spoiler: a mob boss ordering a hit on the producer of such a film.]]
[[/folder]]

[[folder: Tropes I-M]]
* ICannotSelfTerminate: Averted in "DNR", where [[spoiler: a judge heavily wounded in an attack her husband ordered decides to withdraw from life support on the basis that she doesn't want her husband to go to jail for the attack. [=McCoy=] tries heavily to prove that she isn't capable of deciding for herself to terminate, which fails in court. Finally, the husband, out of guilt, cops to the attempted murder.]]
* IdiosyncraticEpisodeNaming: Most episodes usually use some name that becomes a symbol for or represents the story behind a murder. The title may be mentioned in the episode, and other times it utilizes pop culture or literary references.
** "His Hour Upon The Stage", for example, is a line from a famous {{Macbeth}} soliloquy about people's lives being devoid of meaning, comparable to actors in a play. In the episode, a producer's body is found ''five years after he was killed'' by [[spoiler: an actress who used him and his play production company to advance her career and as a front to sell drugs, and killed him when he got wind of the plot. Stone lampshades the fact that she viewed the victim as an actor on her stage.]]
** "Untitled" (yes, that's the title of the episode) involves an out-of-luck painter [[spoiler: murdering his victim in a manner similar to a painting she supported in an art gallery: by stripping her, tying her up, gagging her, cutting her hands off, and letting her bleed to death. The offensive nature of crime is unspeakable, similar to the victim's state before she was killed: hence the weird title.]]
** "Heaven" is the name of a nightclub that burned down in the episode. It also holds the highest body count in the series for a single murder: 53 people.
* IdiotBall: Usually used to set up an AsYouKnow scene. Subverted when the suspects in the interrogation room are legitimately innocent, and end up giving the detectives something upon which to continue their investigation.
* IllGirl: Victims and bystander aside, [[spoiler: Lt. Van Buren]] is undergoing chemotherapy which leads to a funny/heartwarming moment the day after her son gets her some medical marijuana to perk up her appetite. [[spoiler: Her boss angrily rounds on her when people report smelling marijuana on her, then in private gives her a tin of strong mints and tips on hiding the smell, revealing he also went though the same thing. The next episode shows her [[BigEater celebrating the return of her appetite]].]]
* InfantImmortality: Frequently averted.
* InherentInTheSystem: In "Nullification", where a small, far-right political party conspires to [[spoiler: commit an armed robbery that involves the murder of three police officers. The sole lawyer in the party argues that the government is inherently biased and is out to get them for what they did. It's an extremely prejudicial argument, which successfully nullifies the jury and grants a mistrial to the defendants.]]
* InterrogationMontage: Shown, sometimes for hilarity, in cases with a large number of witnesses and suspects. They're usually all shown denying the crime with their lawyers playing a variant of "don't answer that" or "what's on the table?".
* InventedIndividual: PlayedWith in "Nowhere Man", where one of Jack's colleagues, Daniel Tenofsky, is murdered. It turns out that [[spoiler: Tenofsky's real name was Jacob Dieter, who stole the identity of the real Daniel Tenofskie (actual spelling), who dropped out of law school; Dieter assumed his identity throughout his career as a lawyer. It's never revealed why Dieter stole Tenofskie's identity, but another lawyer blackmailed Dieter, saying that he would reveal the truth and thus nullify every single case Dieter tried. This eventually led to Dieter's death.]]
--> '''Serena''': [Dieter] has no family, Jack. No next of kin. What do you want me to do with his personal effects?
--> '''Jack''': What personal effects? Those were more like props.
--> '''Serena''': So who was he really? Dieter or Tenofsky?
--> '''Jack''': (''saddened'') Who knows?
* InsanityDefense: [=McCoy=] hates these. He goes so far as to completely trash Dr. Olivet or Skoda's expert psychiatric opinions over the defendant's condition, despite never having had a degree in psychiatry.
** However, in "Endurance", despite the fact that the defendant's lawyer is terrible at his job and that he has a strong case for manslaughter, [[spoiler: [=McCoy=], in the end, decides that the defendant (who decided to commit suicide along with her son by burning their apartment, but decided against it in the last minute) doesn't deserve to be sent to jail for her actions. He thus lets the jury solely consider Murder Two, upon which the jury acquits the defendant, and sentences her to a rehabilitative asylum.]]
* IrishmanAndAJew: Subverted with Logan and Briscoe. Briscoe's father was Jewish, but his mother raised him Catholic.
* IronLady: Van Buren takes the cake. Then Carmichael. Ross to an extent, but her toughness is never explicitly shown.
* {{Irony}}: At the end of "Red Ball", the Season 16 premiere, Arthur tells [=McCoy=] that he'll never become a DA when he refuses to do the politically correct thing. Fast-forward to Season 18, when Arthur leaves his position and appoints [=McCoy=] as his replacement.
* ItsPersonal: Every single character that has ever appeared on the show has cited this. At least once.
** Notably Det. Mike Logan, who [[spoiler: elicits a confession from the man who killed his partner by putting a gun to the perp's head.]]
** Oh, [=McCoy=]. Please, stop trying to avenge [[spoiler: Kincaid and Borgia]] by delaying due process.
* JackBauerInterrogationTechnique: (Joe Fontana + perp + toilet.)
** [=McCoy=] defends Fontana's actions in the episode, but when he later becomes D.A., he becomes increasingly intolerant of such police tactics. Especially when [[spoiler: he goes after almost the entire Bush administration for waterboarding detainees in Abu Ghraib and Guantanamo.]]
* JackTheRipoff: Lots of murders.
** Subverted in "C.O.D.", to the point where it overlaps with WhatAnIdiot. [[spoiler: Two women decide to kill each others' husbands, but use the same exact M.O. (the same gun, the same seemingly random targeting, the fact that the murders occur within the same week). It doesn't take the cops much effort to put the women together.]]
** In both parts of "Entitled", the police and DA's find a serial killer that escaped the police in Season 4's "Mayhem" because of the similar nature of the crime... until it's discovered that [[spoiler: the murder was actually committed elsewhere by the daughter of a wealthy family, but was set up to look like the serial killer did it, to cover-up the daughter's involvement.]]
* JerkWithAHeartOfGold: Arguments could be made for Jack [=McCoy=] and Mike Cutter.
* JokerJury: Invoked sarcastically by Claire in "Charm City". A white man kills 26 black people on a train from Harlem, but the white man's lawyer argues that a jury in New York County would be too prejudicial with all its minorities, so [=McCoy=] changes venues to Westchester, a primarily white town. Claire's response:
--> '''Claire''': Oh, I see. Twelve Jewish golfers don't have a biased bone in their bodies, but the Irish and Italian working class? They'll lynch you as soon as they look at you. I'm sorry. I must have missed the day they taught ethnic stereotypes in law school.
--> '''Adam''': We didn't ''make'' the system, we just try to ''survive'' within it.
* JurisdictionFriction: The 27th precinct of the NYPD and the DA's office attract a lot of enemies. The detectives rub the crime scene unit, police officers, entire precincts, certain captains and lieutenants, the legislature of the NYPD, and departments in other cities (most often Baltimore, in the [[HomicideLifeOnTheStreet Homicide]] crossovers) the wrong way. The DA's office has rubbed all the aforementioned entities, the state legislature, the FBI, the CIA, the national Attorney General's office, the White House, the entire Bush Administration, and the embassies of volatile countries such as Iran and Columbia the wrong way, as well.
* JustForFun/JohnMunch: First appeared on the series as part of a [[HomicideLifeOnTheStreet Homicide]]/Law & Order cross-over. Munch was the only character to be a prominent part of all three cross-over episodes, usually paired with Lennie Briscoe (who, it is revealed, slept with Munch's ex-wife). When Homicide ended, Richard Belzer proposed to Dick Wolf that Munch join Law and Order as Briscoe's new partner. The role being filled by Jesse L Martin as Ed Green led to Munch being written into SVU instead.
* JoggersFindDeath: Played straight numerous times.
** Subverted in one episode, where a jogger has a heart attack, and when the cops arrive on the scene, they find another body. It also turns out that [[spoiler: the jogger died of a nicotine overdose, despite being a non-smoker. His male lover wanted to kill him to inherit their property... but decides to give it all up when the lover realizes that their marriage in New York was illegal. And can't inherit a single dime.]]
* {{Juggalo}}: The episode "Steel-eyed Death" focuses - poorly - on this subculture.
* JuryAndWitnessTampering: Any time a witness changes his/her testimony while on the stand, or a jury returns an unexpected verdict when the opposite outcome should have been the obvious one, it's generally because of this. Two examples in particular stand out:
** A noteworthy instance of witness tampering from Season 4 is in the episode "Old Friends," where a witness commits perjury while testifying against a member of the Russian mob, then later refuses to testify to the truth because she's been threatened. [[spoiler:She eventually does tell the truth but shortly afterward is murdered. This causes prosecutor Ben Stone to quit the DA's office out of guilt]].
** One example of jury tampering is the episode "Hubris," where a defendant, acting as his own lawyer at his trial for killing a woman, kept zeroing in on one of the female jurors every time he stood up to give an argument. It's later revealed that he'd actually approached her outside the courtroom prior to the verdict, and he'd sweet-talked her and convinced her of his innocence. [[spoiler:He really was guilty, and later dumped the juror after being acquitted...and she was later forced to kill him in self-defense]].
* JusticeByOtherLegalMeans: Jack [=McCoy=] practically lives this trope.
** L&O and its {{Spin Off}}s just as often defy this trope (by refusing to rely on lesser charges or lawsuits) or invert it (not mentioning other ways to nail the defendant, acting like the top count is the only charge they have) as play they play it straight.
* KangarooCourt: The most egregious example was in "Knock Off", in which Lupo and Bernard go to Dargerville, NY (a fictional town) to arrest a certain man, and then Lupo gets arrested by the regional sheriff because the police were about to uncover a conspiracy. In Lupo's indictment, the judge is literally an idiot who is easily swayed by the police officers.
* KarmaHoudini: Epic example in "Patient Zero" when the defendant [[spoiler: who injected a woman with whom he had broken off one of many affairs with SARS, and the defendant's wife, who perjured herself to inexplicably get him off, despite numerous confirmed affairs.]]
** [[spoiler: It's heavily implied that the defendant's wife actually didn't give a damn about traditional attitudes toward marriage. She wasn't the obedient, bend-over-backwards wife, but the cold, calculating one who played the legal system just so that she could get a say in the matter.]]
* KarmicDeath: The fate of many defendants who are definitely guilty, but who manage to escape legal justice. Especially prevalent in cases where defendants tried the case ''pro se'' (meaning they served as their own attorney). Most ''pro se'' defendants in the show's history has either been convicted or killed by the end of the episode.
** So many people have been shot on the court house steps it is a wonder anyone goes near them.
* KilledOffForReal: Ironically, Kincaid's actress, Jill Hennessey, thought that her character [[spoiler: actually survived the car crash, but remained in severe paralysis or something of the sort. Only after her friend watched Kincaid's final episode and told her what happened that she discovered that Kincaid actually was killed.]]
* TheKindnapper: One episode involves a mentally-unbalanced woman who kidnaps a young girl from a [[ParentalNeglect neglectful mother]] and keeps her in a secret room in her basement. At the end of the episode the woman is acquitted of kidnapping and is planning on suing for custody of the girl.
* TheKirk: With the A.D.A. generally being TheMcCoy and the E.A.D.A. generally being TheSpock, you would generally expect that TheKirk would be the D.A. However, Adam, Arthur, and [=McCoy=] (when he's a district attorney) almost always have their own preconceptions and political aspirations on hand while going into a trial, and direct their subordinates to perform contrary to their judgment.
* LampshadeHanging: The episode "Bottomless" had a member of a big bad corporation comment on how Jack [=McCoy=] often goes after "big bad corporations."
* LaserGuidedKarma: The feds pull this off in "Payback". Jack is able to plea a certain defendant in exchange for information regarding a mob boss, whom he arrests. However, as Jack is putting charges against the mob boss, the feds intervene and tell him to drop the plea, which would then entail that the mob boss goes free. Jack grudgingly does so, and releases the mob boss; [[spoiler: later, the mob boss is found dead. Jack realizes that the feds decided that rather than keep the mob boss in jail, it would be better to give the illusion to the others in the mob that the mob boss himself had given damning information to the police and was released. The feds planned that mob would then kill off the boss.]]
* LettingHerHairDown: Serena in the 14th and 15th seasons. It's also somewhat representative of her attitude during those seasons; she becomes more emotional and headstrong, openly criticizing Jack's tactics. Eventually [[spoiler: she gets fired.]]
* LimitedWardrobe: Jack prefers a bulky windbreaker to a more aesthetically pleasing overcoat, and occasionally wears jeans and a denim jacket. Justified in that he rides a motorcycle instead of driving a car: can't really wear overcoats with those.
* LittlestCancerPatient: Always there to break the viewer's hearts. And to give a doctor in "Compassion" accused of negligent homicide a justification to do what she did: to keep helping these patients.
** In one of Van Buren's [[spoiler: chemotherapy sessions, she meets one, who tells her, "I was scared too, at first."]]
* LongRunnerCastTurnover: The series ended with a completely different cast than when it started. The series lost its last original cast member at the end of its tenth season, when Steven Hill's Adam Schiff retired. So half of its run was done with no one from the first season cast. TheOtherWiki has [[http://en.wikipedia.org/wiki/Law_%26_Order#Casting_and_characters a section]] dedicated to the cast/character changes and overlaps.
** It's worth mentioning that S. Epatha Merkerson and Sam Waterston, Van Buren and [=McCoy=], had remained on the show for 17 and 16 seasons respectively. Merkerson planned to depart after Season 20 (though this was moot after the show was cancelled at this time), and Waterston switched roles from Executive A.D.A. to the D.A. in Season 18, after ''thirteen'' seasons as the former role.
* LongRunners: As mentioned above, S. Epatha Merkerson, Sam Waterston, Jerry Orbach, and Steven Hill all remained on the show for ten years or more.
* LongerThanLifeSentence: [=McCoy=] sentences one defendant to 240 years in prison for [[spoiler: selling saline solution in place of a legitimate flu vaccine, cause the deaths of 18 people.]]
* LostEpisode: 'Sunday in the Park with Jorge' was pulled from reruns for 8 years following complaints from Puerto Rican activist groups.
* MakeTheDogTestify: In "Who Let the Dogs Out", [=McCoy=] calls [[spoiler: a rabid dog into the courtroom to disprove the witness's claim that it was harmless.]]
* TheMainCharactersDoEverything: The original series is a notable [[AvertedTrope aversion]] of this trope. The writers made sure that the main characters stick to their own job and operate within their limits. This applies to both the policemen and the attorneys. If something outside their spheres needs to be done, it usually won't be shown on-screen, or more rarely will be shown done by a minor guest character or even a disposable extra. This allowed keeping realism while avoiding LoadsAndLoadsOfCharacters.
** However, the A.D.A.s do perform follow-up investigations/interviews, which they generally would not do in RealLife, considering their heavy workload: which, also, is not shown on screen.
* MajoredInWesternHypocrisy: In "Promote This!", a high-class Latino woman pretends to be a house servant to avoid suspicion from the cops. Det. Bernard is able to identify just from her attitude while speaking to her that she isn't low-class. When questioned on the stand later as to why she pretended to be house servant, she asserts that it was the police's mistake in seeing her as a "groncho", which is a derogatory term for poor Hispanics and Latinos.
* MalcolmXerox: If an episode showcases racial issues, you'll see ''several'' of those. Especially if a black lawyer is the defense attorney.
** As noted in Flanderization above, this is especially true if Paul Robinette is the defense attorney.
* MamaBear: Any number of victims, perps, and their relatives. Jamie Ross is this to her daughter.
* ManslaughterProvacation: A lot of husbands or wives over the years. An interesting subversion is a priest in "Under God", who [[spoiler: killed a man, who had been released from jail for murdering a couple's young son. The priest justifies his murder by claiming that God made him did it, and Dr. Olivet decides that he was competent enough to not render an Insanity plea. It seems as though the priest will get a successful justifiable homicide defense, until [=McCoy=] points out to him that if he were truly acting under God's orders, he wouldn't have tried to cover up the crime.]]
* MathematiciansAnswer: Skoda is notorious for ambiguous answers, since he is usually hesitant to come up with a clear conclusion toward a suspect's psychological make-up. It bites him in the butt a few times.
** In one episode, he and Dr. Olivet both interview a defendant, and Olivet is more sure of her answer than he is, so [=McCoy=] uses her as a witness; the defense later catches wind that Skoda had an opinion that would help their case, so they use him as a witness. [=McCoy=] isn't pleased.
** In the series finale, Skoda tells Cutter that the angry blogger is not very impulsive... and later, when the blogger [[spoiler: suddenly decides to go through with his plan with little warning, Cutter grills Skoda, who defends his earlier ambiguous opinion.]]
* MauveShirt: The psychiatrist characters, Olivet and Skoda and Medical Examiner Elizabeth Rodgers. Also, Detective Profaci during the first seven seasons.
* MayDecemberRomance: [[spoiler: A bit of a reversal, as the May is a 20-year-old guy and the December is a 60-year-old woman. The guy is shocked that his lover had gotten a "vagina-lift" (among other revitalizing procedures), since he liked her just the way she was.]]
** Jack and Claire is a straight example.
** Reversed again in another episode, where a sixty- to seventy-year-old woman marries a twenty-year-old man... and it's later revealed that [[spoiler: the young man is attracted to older women because his mother slept with him as a younger child.]]
* TheMcCoy: Definitely not Jack [=McCoy=]. Usually the female A.D.A. Except when Angie Harmon played the role as a conservative Republican, which led the writers to bring in a new D.A. who was female and a former college professor, and made ''her'' TheMcCoy.
** PlayedWith in one episode, where Jack [=McCoy=] feels guilty about prosecuting a teenage girl who was raped as a child as an adult for murder. Serena, the biggest [[TheMcCoy McCoy]] of all the A.D.A.s, passionately [[WhatTheHellHero calls him out for overtly sympathizing with a teenage girl]], to which Jack responds that she wouldn't understand. When it's later revealed that the teenage girl [[spoiler: was in fact a manipulative adult]], [=McCoy=] completely holds it against the defendant and ruthlessly prosecutes her.
* MedicalRapeAndImpregnate: A very disturbing example in "Grief", where a woman, whose daughter went into a debilitating coma in a car accident, [[spoiler: paid a hospital orderly to rape her comatose daughter to conceive a child. The daughter eventually dies, but the baby is saved. But in the end, both the daughter's father and the orderly's parents sue for custody of the child.]]
* MercyKill: Subverted by a Honduran woman, in "Promote This!", who terminates life support for her son [[spoiler: who was an illegal immigrant brutalized by a group of teenagers. Initially one would think that she did it because she had given up hope on her son and didn't want to see him or herself suffer by prolonging his life. However, Connie points out that she probably did it because she somehow knew that the teenagers, who were convicted of first degree assault against the man, could be charged again for first degree bias murder. Jack replies:]]
--> '''Jack''': Why not? Everyone games the system.
* MirandaRights: Played with. The cops generally don't use cards and have the suspects sign them, which is what they're supposed to do to guarantee that the suspects know and can properly waive their rights.
** They also frequently deviate from the exact wording; if they arrest a lawyer, they sometimes don't bother to mention to them that they have a right to an attorney.
** In one episode, a kid says "I don't want to say anything", to which Briscoe replies "Yeah, you can do that..." then handcuffs him and adds, "and you have a right to an attorney."
* MistakenforRacist: [=McCoy=] has had his fair share of allegations toward him by black lawyers.
** Green, surprisingly. In "Suicide Box", [[spoiler: a black teenager under suspicion for attempting to murder a cop justifies his actions by accusing all cops of being racists who target and kill black children. [[note]] To be fair, the tirade was kinda warranted, especially after it's uncovered that the police participated in a massive, unresolved cover-up to implicate the kid's deceased brother for committing suicide, not being a victim of murder. [[/note]] To highlight the ludicrousness of the allegation, Green sarcastically tells the boy that he gets "a toaster oven for every black boy he beats up", and the teenager, suddenly forced to face the consequences of his actions, cops to the attempted murder. However, the boy's lawyer argues that Green was a racist who drove the boy to confess.]]
** Briscoe in "Marathon". While arresting a black man because he had the bike that was used in the killing, [[spoiler: Briscoe tells the black man that he should have ditched the bike to "blend in with the rest of the roaches." This leads to Det. Green being hostile toward his partner for the entirety of the episode, and eventually leads to a screaming match between the detectives near the end of the episode. They kiss and make up, thankfully.]]
* MistakenForTerrorist
** One episode subverts this when a guy killed a terrorist group by using terrorist tactics which accidentally killed some people as well.
* MixAndMatch: The basic concept of each episode.
** Some notable episodes mentioned throughout this page change this around, however.
* ModestyBedsheet: Mostly played straight whenever police raid a home and, unfortunately, find the suspect intimately, erm, you know the rest. It's played for laughs in an earlier episode, when the police are handcuffing a mostly-naked perp; Det. Logan approaches his girlfriend to tell her to dress up, but she promptly drops her bedsheet in a case of ToplessnessFromTheBack. He actually isn't amused.
* MorallyAmbiguousDoctorate: Lampshaded by lots of detectives when arresting Wall Street bankers, prestigious doctors, or popular lawyers with impressive degrees. The perps' education usually led to their feeling of superiority, which usually caused them to commit murder.
* MrFanservice: Rey Curtis. Frequently mentioned by almost every female extra on the show.
** This was intentional. One of the reasons for letting Chris Noth (Det. Mike Logan) go was to bring in someone more handsome than him, to allow more women to watch the series. Enter Benjamin Bratt.
* MsFanservice: Nina Cassady. Invoked both InUniverse and RealLife: Van Buren constantly criticizes her sex appeal and unorthodox methods, which resulted in her being noted as the "Beauty Queen Detective"; Milena Govich was panned by critics and the audience alike during her run, allowing her to solely run for a single season.
* MurderByMistake: Notably in "Misconception". In the episode, [[spoiler: a husband beats his pregnant wife, who consents to the abuse, to cause a miscarriage as part of a plot to extort the wife's employer, who was sleeping with her. The husband's defense is that since the unborn child was under 24 weeks of age, it's not murder. However, Stone makes a famous but prejudicial argument that intent follows the bullet, and that since the couple's intent was to kill an unborn child, regardless of whether it was of age or not, it's still murder.]]
* MustMakeAmends: In "Excalibur", the Season 18 finale, [[spoiler: [=McCoy=] tries to nail Governor Shalvoy by himself by disregarding the feds' cooperation and Cutter's advice. It fails when Governor Shalvoy destroys all the loose threads in the investigation, so that [=McCoy=] didn't have any avenue to prosecute him.]] In the Season 19 finale, "The Drowned and the Saved", [[spoiler: Cutter completely manipulates the governor into resigning by waving a blank piece of paper in his face, claiming that it had names of all the prostitutes he had slept with in the past year. When [=McCoy=] hears about this, he's happy that the governor's out of office, but disgusted that it took a dirty trick to get him out of there.]]
* MyCard: From detectives to annoying businessmen.
* MySisterIsOffLimits: Used by a brother in "Black, White, and Blue". The police like him a lot for the murder, but it turns out that he wasn't involved.
[[/folder]]

[[folder: Tropes N-R]]
* NeverFoundTheBody: [=McCoy=] has notably prosecuted certain cases without even a body. Notably "Hands Free": see the ShiftingTheBurdenOfProof example below.
* NoMereWindmill: Subverted in "Fed", where [[spoiler: a man working for a leftist reelection campaign is found murdered with the word "FED" scrawled on his chest. The police initially believe a far-right activist did it because the met with the victim, and outright hates the government. It turns out that the far-left company the victim worked for killed him to cover-up plans he made to extort far-right companies, which then would cover-up bribery and corruption at the executive positions of that leftist company. They only pretended to believe that he was an evil government worker to implicate a far-right group.]]
* NobilityMarriesMoney: One episode, "Merger", featured a case made more complicated by the fact that the murder involved neighboring families with engaged children with a very complex relationship. It turns out the engagement was [[spoiler: a [[TitleDrop merger]] between impoverished patricians on the one hand and nouveau riche on the other.]]
* NoEnding: A couple of episodes. One notable one was the midpoint of the series, the season 10 finale. [[spoiler: [=McCoy=] has convicted a Chilean national of a murder committed during a military coup, but it's being challenged on jurisdiction grounds. We see [=McCoy=] and the opposing attorney, Chiles, make arguments to the Supreme Court in DC, and then a clerk comes to deliver the verdict to the lawyers... and the show ends just before she gets to them.]]
* NoGoodDeedGoesUnpunished: Considering that you're dealing with lawyers on this show, this trope is definitely played straight.
** One particularly notable example is in "DR 1-102", when [[spoiler: a perp taking a hostage in a convenience store demands a lawyer. Rather than have the police risk sacrificing a civilian, Serena goes in to deal with the man under the pretense of being his lawyer. She is able to sufficiently calm him down and have him confess to the two murders he committed, and the police are able to separate him from the hostage. However, she faces a hearing from the disciplinary committee and risks losing her badge because a) she pretended to be his lawyer, and b) she didn't read him his rights, which prompts an unwarranted confession. [=McCoy=] is barely able to successfully defend her.]]
* NoPartyGiven: Averted. Given the show's Manhattan setting, it's not surprising that most characters are explicitly Democrats; the only confirmed Republicans are DA Arthur Branch (explained in-series as a reaction to both 9/11 and the pushover nature of the previous DA, Nora Lewin), and ADA "Hang 'Em High" Abbie Carmichael. Also, Ben Stone is portrayed to espouse certain conservative values such as being pro-life.
** These exceptions aren't coincidental: both Branch and Carmichael are played by well-known Republicans. Fred Dalton Thompson was actually a Republican Senator from Tennessee before he took the ''L&O'' gig--and left the show in 2008 to ''run for President'' ([[CaptainObvious he lost]], not making it past the first couple of primaries).
** Angie Harmon is noted as a Republican activist; some of the reasons Dick Wolf immediately selected her for the job was due to her Texas accent, and to bring in an ADA who would outright challenge [=McCoy=]'s opinions.
** Michael Moriarty, the actor who portrayed Ben Stone, is a strong conservative: although, he wasn't as vocal about his opinions on the show as he is in RealLife.
* NotAfraidToDie: The defendant in "Genius".
* ObstructiveBureaucrat:
** One episode, "City Hall", features a semi-sting to get potential criminals in front of a witness, with Detective Briscoe posing as an ObstructiveBureaucrat and loving every second of it.
--> '''Briscoe:''' I told you, the amnesty requires the form be filled out in ''triplicate''!
--> '''Random Guy:''' But there's only two copies!
--> '''Briscoe:''' [snatching forms] We'll mail you the other one.
--> '''Green:''' [observing via hidden camera] He's enjoying this way too much.
** Most corporations and lawyers fit this trope to a T, at least until the detectives dig up some dirt and threaten them with a subpoena from the IRS. In the cases where that doesn't work, [=McCoy=] brings out the hardball.
** The police force itself. "The Blue Wall" is the imaginary boundary that protects the police from reproach from their colleagues, and is used often to cover up bad acts committed by investigators. Invoked, obviously, in "The Blue Wall", where Captain Cragen is under suspicion for destroying evidence, and fellow policemen both refuse and are willing to testify against him, for various reasons.
* ObstructiveVigilantism: Nick Falco shows up after his short run as a suspect and his determined efforts to clear his name repeatedly pooch the investigation.
** Played with in "Myth of Fingerprints", where it is revealed that [[spoiler: a fingerprint analyst has been falsifying records to ensure convictions. She was finally revealed when the brother of a man who was convicted on the analyst's falsified testimony is brought up on charges, proclaiming both his and his brother's innocence. When an FBI analyst went through a random selection of the police analyst's files, including the convicted brother's, it was revealed that over 30 percent of the supposedly confirmed cases were impossible to match. At one point, the DA's office refer to her as a 'cop in a labcoat'.]]
*** To make things worse, one of the cases the analyst helped get a spot-on murder conviction for directly resulted in [[spoiler: Van Buren's promotion to Lieutenant. Thus, Van Buren's reputation is on the line because a forensic analyst didn't do her job properly.]]
** An intentional example is in a later episode, where a former captain in the precinct now serving as a pushover corporate sponsor [[spoiler: gives the detectives unwarranted evidence which conclusively implicates two people in a murder... and then lies on the stand by saying that the detectives asked him to get the evidence, so that the evidence may be thrown out in court. Van Buren is not pleased.]]
* OccamsRazor: A lot of investigations sometimes play this straight.
** It's worth noting that Reasonable Doubt mainly mitigates the success of this trope. The prosecution, which carries the burden of proof, is able to portray certain pieces of evidence as extremely damning toward the client. The defense can usually only challenge the conclusiveness of the evidence and suggest alternate pieces of evidence for alternate. But the prosecution tends to stick to the fact that if the evidence conclusively establishes a certain scenario, any evidence to the contrary that isn't extremely strong isn't able to establish enough Reasonable Doubt.
* OccupiersOutOfOurCountry: Every single defense looking to bait xenophobic feelings pulls this one out of the hat. In "Patriot", notably, where the defense's closing statement could be read as a call to war against Muslims.
* OfCorpseHesAlive: A lot of killers leave their victims on public benches to make it look as though they're sleeping. One victim, an attractive woman in "Turnstile Justice", is actually eyed by men surrounding her before cops try to get the men away and wake her... and realize that she's dead.
* OffOnATechnicality: Oh, boy. The police have their best interests in mind, but end up doing something completely logically valid that ends up getting thrown out by some hotshot lawyer.
** One episode featured the detectives, while searching a perp's house, uncovering documents that would firmly establish the perp's motive. However, the documents and the entire case get thrown out because the warrant established that the detectives were solely allowed to look for evidence relating to the elements of a crime... and motive is not an element of a crime, apparently.
* OffstageVillainy: The actual crimes are rarely, if ever, shown to the viewer. Most suspects and killers are never shown doing anything bad in view of the camera. Except when they take hostages to resist arrest, of course.
* OldMoney: While those with nobility or old money are portrayed as ruthless or selfish in most instances, "Pledge" provides an interesting aversion. A man who went to college in a state school wanted to marry high-class, aristocratic girls who ended up in more prestigious private schools. However, these girls laughed him away, and the man hates himself and his self-perceived "low-class" wife and daughter for the rest of his life. This prompts him to [[spoiler: kill the son of one such woman who rejected him. In the end, Cutter puts another woman on the stand pretending to be a high-class girl whom the defendant loved many years ago, and uses the fact that said woman married a low-class man to guilt the defendant into confessing.]]
* OminouslyOpenDoor: Averted in one episode, where the perp superglues the lock on the door to hide his crime for a few hours.
* OmnidisciplinaryLawyer: Lampshaded by [=McCoy=] in "Double Blind". In it, the suspect asks for his parents after being arrested by the police, and because the detectives do not have any obligation to satisfy an of-age (above 18) suspect's demand to see his parents, they ignore it and squeeze a confession out of him. However, the suspect had vaguely mentioned to the police days beforehand that his father was a corporate lawyer, and when [=McCoy=] asserts that he had no authority to represent his son anyways, the judge disagrees. The confession gets thrown out.
* OnlyBadGuysCallTheirLawyers: The detectives pull this on many, many suspects before continuing to question them. Of course, their lawyers are not amused once they ''do'' get inside the interrogation room.
* OohMeAccentsSlipping: Frequently averted with Cutter, who puts on a very convincing New Yorker's accent despite his actor, Linus Roache, having a very thick English accent.
* OpeningCreditsCastParty: In some episodes, contrary to the implication of the trope, all four characters in the walk (the senior and junior detectives and the executive and assistant district attorneys) do appear together in a single scene. The viewer tends to see this a lot more often during the later seasons, with Cutter, Rubirosa, Lupo, and Bernard working a lot more closely.
* OpeningNarration: One of the most famous in TV history.
* OpportunisticBastard: A lot of prosecutors are portrayed this way when looking for the death penalty to boost their career. Nora Lewin is a notable aversion, when her decision to allow an 18-year-old to be sentenced to death is against everything she stands for.
* OrganTheft: "Sonata For A Solo Organ". It's a pretty interesting, non-BlackComedy take on the whole practice when the victim, who actually survives, later testifies that he feels raped.
* OrgyOfEvidence: Considering that the D.A.s go to trial with little, if any, hard evidence, they get pretty suspicious if there's too much.
* OutWithABang: With JuliaRoberts, no less.
* PapaWolf: Any number of perps, victims, or their fathers.
** Subverted in some cases where the papa wolves display their protective personalities for show.
* ParallelPornTitles: InUniverse. In "High & Low," there is a videocassette box for a film titled ''Film/{{American B|eauty}}ooty''.
* PenultimateOutburst: Partially subverted in the episode "Life Line".
* ThePerfectCrime:
** In "Called Home", a doctor who handed out instructions on how to kill oneself painlessly [[spoiler: actually knew that the method that he had described was actually extremely painful. However, no one but the victims would know how painful this procedure is, and any evidence that the method was in fact painful would die along with them.]]
** In "Submission", a wine dealer [[spoiler: would sell cheap wine to rich people expecting to pay top dollar for good quality wine. It's the perfect crime, because the buyers would have no idea how good quality wine was supposed to taste, and thus have no idea that they were being ripped off.]]
* PerpWalk: Usually of the Up (or Down) the Courthouse Steps version. Expect a VigilanteExecution whenever you see one.
** A VigilanteExecution can happen during any courthouse PerpWalk, but if the walk in question happens in either the middle of the episode or in the final minutes, [[TropeTelegraphing find cover behind something]].
** A particularly hilarious/memorable PerpWalk was in the last episode of Season 5, when [[spoiler: a politician accused of murdering his gay rival is released, and starts spouting vitriolic comments toward the homosexual protesters outside. In response, Det. Mike Logan punches the politician before shoving him into the car.]]
* PersecutedIntellectuals: In "Genius", where a [[ExactlyWhatItSaysOnTheTin genius writer]] accuses the detectives of pursuing those as "educated" as himself.
* PhallicWeapon: In "Tango", where [[spoiler: a prostitute shoves a hairdryer up a girl's... rear and kills her due to extreme jealousy.]]
* PlotPoweredStamina: Well, sometimes - they're inconsistent about it.
** In episodes like "Double Down", where cops are shown pulling all-nighters to chase criminals, they appear tired and spent. In other episodes where they seem to have consistently been pursuing the case, they appear awake. Chalk it up to the inconsistent narrative and the fact that cops are shown to be fully pursuing one case at a time, which in most cases, they're not.
* PoesLaw: In "Blood Libel", teenagers who codify a certain message in their yearbook, [[spoiler: "Kill all kikes",]] pretend that it's satire. However, their other grossly anti-Semitic writings and words convince the detectives that it's the real deal.
* PoliceLineup: Shown in lots of cases. They're pretty accurate; even if a witness makes a subtle remark such as "I'm pretty sure" when referring to an identification, it's usually not admissible.
** The most notable one is probably in "DWB", where [=McCoy=] [[spoiler: orders the detectives to tell the witness which person to pick out of the line-up. [=McCoy=] later justifies this to Abbie, claiming that it was legal because they weren't actually going to use the line-up in court. Nevertheless, the witness's identification indirectly results in two cops being placed on death row.]]
* PoliticalCorrectnessGoneMad: The Ann Coulter {{Expy}} in "Talking Points", Judith Barlow, claims this belligerently.
* PopCulturalOsmosis: In the 90's, more television shows started shifting away from the trial portion of law enforcement, favoring instead the investigation side. ''Law & Order'' is often credited with keeping fictional trials on television into the 21st century, and developing public knowledge of the trial system. Even its little sister, LawAndOrderSpecialVictimsUnit, focuses more on the investigative portion than the law.
* PoweredByAForsakenChild: In "Slave", a woman owes her drug dealer over $800, and since she couldn't make that kind of money, [[spoiler: she instead basically offers her thirteen-year-old son up for payment. The drug dealer then abuses the boy and turns him into a vicious money collector financing his operation.]]
* PowerWalk: Toward the end of the opening theme song, the senior detective/sergeant, the junior detective, the EADA, and the ADA are all shown walking in some sort of hallway in the courtroom. It started off with a stroll in the earlier seasons before eventually becoming a walk.
* PragmaticVillainy: In "Shrunk", an open-and-shut murder case which involved a mentally unstable screenwriter [[spoiler: killing his girlfriend out of rage. It turns out that the screenwriter's psychiatrist had dated the victim, who was an actress, before breaking it off, and decided that he wanted her killed. The psychiatrist then influenced the screenwriter to date the actress and withheld his medication, knowing that it was only a matter of time before the screenwriter exploded and killed the actress. The psychiatrist, then, would receive more prestige and recognition from drug companies while his client wouldn't suspect him of betraying their mutual trust.]]
* PreemptiveShutUp: [=McCoy=] pulls off a variant of this trope in "Double Down", where he must prove that he didn't know that the [[spoiler: perp had shot his accomplice in a robbery before he made a deal with the perp.]] When Briscoe and Curtis came to inform him that they found [[spoiler: the body of the accomplice]], [=McCoy=] shut them up so that he could claim that he solely knew that the [[spoiler: accomplice was ''dead'', not that he was killed by the perp.]] Curtis isn't very amused by [=McCoy=]'s little game of splitting hairs.
* PrettyInMink: A few episodes, if the guest character is wealthy (not always the perp, so it's not that other trope).
* PrimalScene: In "Killerz", a woman and her boyfriends would constantly have sex in full view of their 10-year-old child. This traumatized the girl enough to psychologically justify to herself [[spoiler: that killing her classmate, pulling his pants down, and stuffing a battery in his mouth was alright.]]
* {{Profiling}}: Inverted with Frank Pembleton, a [[HomicideLifeOnTheStreet Homicide]] character who appears in the episode L&O episode "Charm City". He uses a payphone in a bar to find a criminal, and when he's leaving, the bartender asks him to pay two dollars for a short call. Pembleton flashes his badge, and the bartender tells him to come back with a real one next time. He isn't very amused as he's forking over the cash.
* PromotionToOpeningTitles: Carolyn [=McCormick=] as Dr. Elizabeth Olivet, TheShrink. The ''only'' such promotion in 20 years, as every other new cast member was introduced out of the blue in their premiere episode. Olivet was later DemotedToExtra before her actress left the show entirely; in its later seasons, she returned in the same limited capacity.
** Michael Imperioli as Nick Falco, Det. Green's replacement for the last four episodes of Season 15. He goes back to being an extra in the penultimate episode of Season 16.
* PunchClockVillain: Lots of mooks cite this when caught to alleviate punishment.
* PutOnABus: Almost every character that wasn't killed off.
* QuestionableConsent: Especially in "Damaged", where [=McCoy=] must weigh just how far a girl with an IQ below 70 (legally, mentally retarded) can [[spoiler: consent to having sex with three boys in a music room. And getting a plastic bottle shoved up her... ah, um.]]
* QuipToBlack: Lennie Briscoe is famous for these. The SchiffOneLiner also applies here.
* RapeAsBackstory: [[spoiler: Abbie.]] It's revealed in "Punk", and it allows her to finally sympathize with a young woman toward whom she spends the entire episode trying to enact criminal vengeance.
* RealLifeWritesThePlot:
** The departure of DA Arthur Branch was entirely because Fred Thompson decided to run for the Republican nomination for President.
** Detective Ed Green was shot so that actor Jesse L Martin could take the time necessary to reprise his role as Tom Collins in the film version of {{Rent}}.
** Lennie Briscoe was transplanted to the ill-fated Trial By Jury because Jerry Orbach was suffering from prostate cancer. When Orbach died, Briscoe had to be killed off, although his death wasn't mentioned on-screen until years after.
** [[spoiler: Serena's]] famous SuddenlySexuality was a result of the fact that [[spoiler: Elisabeth Rohm's]] agents didn't want her reprising her whole through the fifteenth season, so when Dick Wolf decided to write her off, he asked her, "Do you want a normal Law & Order ending... or a splashy ending?"
** George Dzundza was stressed out travelling constantly from L.A. to New York, and he had thought initially that he would maintain a starring role in the series. So, his character, Max Greevey, was shot and killed the first episode of the second season.
* RealityIsUnrealistic: Considering the amount of political pressure District Attorneys in New York county face, it's hard to believe that throughout the span of the entire series, with the exception of Season 20, the real District Attorney of New York County remained the same: Robert M. Morgenthau, who served from 1975-2009. Especially considering that the character of the District Attorney changed hands four times in the series' run, though that was mainly due to RevolvingDoorCasting.
* ReasonableAuthorityFigure: The D.A.s generally recognize [=McCoy=]'s reluctance to argue certain things, but sometimes they force him to argue against his convictions for the sake of justice.
** In "Black, White, and Blue", Adam, to set an example for the police force [[spoiler: to not overstep their authority, forces [=McCoy=] to find two cops guilty of intentionally placing a bratty teenage boy in the middle of a riot, where he was later killed. [=McCoy=] is initially against any legal action against the cops, but is able to place a deal with their attorneys for five to fifteen years. But an angry Adam forces [=McCoy=] to charge them with something much higher, and [=McCoy=] ends up biting more than he can chew and pleads for a reduced sentence. Adam is not pleased by the end of the episode.]]
** Arthur understands [=McCoy=] and Serena's ideological differences, but [[spoiler: forces them to argue against ''Roe v. Wade'' just so they can establish that a certain defendant did not have a reasonable expectation of privacy toward his emails. [=McCoy=] isn't very pleased to argue that privacy is just an abstraction, not intended by the framers of the constitution.]]
** And, ironically, [=McCoy=] becomes this to Cutter, even though he tries to be fair to his subordinate. In the former's reelection year, he forces Cutter to [[spoiler: prosecute a crazy mob for terrorism. Cutter, Lupo, Connie, and Bernard, to an extent, are all against his decision. Finally, Cutter is able to convince his boss to just cut deals with the members of the mob.]]
* RedHerring: The success of an investigation is inversely proportional to the amount of time of the show that's left.
* RedOniBlueOni: Usually played straight with an A.D.A. (notably Serena, Borgia, and Claire) and [=McCoy=], respectively.
* RefugeInAudacity: Jack, frequently. Defense attorneys, just as frequently. The cake has to be taken by a legal aid attorney on his first murder trial using his own lack of experience as part of his strategy.
--> '''Judge Stein:''' Either you're a brilliant strategist, Mr. Fienman, or you are the biggest jackass ever to set foot in my courtroom.
** In "Political Animal": Victor Vargas, a conman funneling money from bogus investments towards various political campaigns, chose to defend himself on a triple homicide case. His defense boiled down to flaunting that he was a conman and a crook, and that it would have been in his interest to pay the victim off, but all the politicians he was funding had plenty of reason to keep the victim quiet. What really qualifies him for this is how he justifies his decision to represent himself;
-->'''Vargas:''' I have been to law school.
-->'''Connie:''' We don't have any record of that.
-->'''Vargas:''' It was under another name, and I was disbarred for stealing funds from clients. But I think I remember enough.
** In "Anchors Away", Lupo and Bernard take away a gossip columnist's press rights because she wouldn't give them the name of the source. The columnist sighs and says that she legitimately doesn't know. Lupo then asks her why she would even bother invoking her right to protect her sources, and the columnist smiles and says, "''it's the principle''."
* ReverseSlipperySlopeFallacy: A particularly prejudicial black lawyer in "Rage" claimed that 200 years of white racism motivated his black client to go off the edge and commit murder... but pushes that no one should have judged his client on race in the first place.
* RevolvingDoorCasting: The show is also notable for having replaced every single character at least once; no actor appeared in a regular role in all twenty seasons (although several notable cast members appeared in the majority of the series). Character departures have varied widely, from DroppedABridgeOnHim to PutOnABus to ChuckCunninghamSyndrome to StuffedIntoTheFridge to one case of SuddenlySexuality.
** Both George Dzundza and Paul Sorvino (Det. Greevey and Serreta) were tired of the repetitive nature of the show, so their characters were both [[spoiler: StuffedIntoTheFridge, first episode of Season 2 and mid-Season 3 respectively. (Well, Serreta is later said to have survived the gunshot.)]]
** Dann Florek and Richard Brooks (Lt. Cragen and A.D.A. Robinette) were sent off after Season 3 because NBC complained that there weren't enough female characters on the show. So, Cragen was transferred into Series/LawAndOrderSpecialVictimsUnit, and Robinette joined a Wall Street firm, before later becoming a defense lawyer.
** After Florek and Brooks's send-offs, Michael Moriarty's (Exec. A.D.A. Stone) speeches and conduct became more vitriolic and problematic for Creator/DickWolf; he even went so far as to call the Attorney General at the time "a psychopathic Nazi". Moriarty's dissatisfaction with the "homogenization" of the series (inclusion of female characters) forced him to resign. His character resigned after [[spoiler: his conviction of a Russian mobster led to a witness being murdered.]]
** Chris Noth (Det. Mike Logan) had the same attitude toward the series as Michael Moriarty after Dann Florek and Richard Brooks were fired, so Creator/DickWolf canned him as well after Season 5. Mike Logan [[spoiler: punches a homophobic politician in the Season 5 finale,]] which leads to him being transferred to Staten Island. His story is later further addressed in ''Exiled: A Law and Order movie''. He eventually joins Series/LawAndOrderCriminalIntent's cast.
** Jill Hennessey (A.D.A. Kincaid) left to focus on other pursuits, so [[spoiler: Kincaid was killed off in Season 6's finale.]]
** Carey Lowell (A.D.A. Jamie Ross) wanted to spend more time with her daughter, so Jamie Ross was also sent off the show to spend more time with her daughter after Season 8, in a weird case of "life imitates art". She makes a guest appearance in a Season 11 episode as a defense attorney.
** Benjamin Bratt (Det. Curtis) decided to leave the show, so his character elected to pursue a desk job to spend more time with his family after Season 9.
** Steven Hill (D.A. Schiff) decided to retire, and Adam Schiff was said to work with Jewish charities in Europe at the end of Season 10.
** Angie Harmon (A.D.A. Carmichael) left the show, so her character got promoted to the Attorney General's office after Season 11.
** Dianne West (D.A. Lewin) wasn't a very popular character on the show, so her character stepped down as well after Season 12, in response to the 9/11 attacks, as the public favored the more right-wing Arthur Branch.
** Jerry Orbach (Det. Briscoe) was suffering from prostate cancer, so his character retired at the end of Season 14. He continued to work on Series/LawAndOrderTrialByJury, and completed two full episodes before succumbing to the disease. It's applied much later in the series that he died soon after retiring.
** Elisabeth Rohm (A.D.A. Southerlyn) couldn't handle a fourth season, so her character was fired mid-Season 15. Along with a "splashy" [[spoiler: SuddenlySexuality]] send-off.
** Jesse L. Martin had to leave Season 15 near the end to work on filming the movie {{Rent}}, so he was replaced by Nick Falco (Michael Imperioli) for the last four episodes of Season 15. He returned in Season 16.
** Annie Parisse and Dennis Farina (A.D.A. Borgia and Det. Fontana) both left the series after Season 16 for other projects, so Borgia [[spoiler: was killed off]] and Fontana retired.
** Milena Govich (Det. Cassady) was not a very popular character, so after a single season on the show (Season 17), her character was promoted.
** Fred Thompson (D.A. Branch) left the series after Season 17 to run for President, so his character steps down. [=McCoy=] takes his position, and Mike Cutter (Linus Roache) replaces [=McCoy=]'s role as Exec. A.D.A.
** Jesse L. Martin (Det. Green) permanently left the show mid-Season 18, so his character [[spoiler: was suspended, then resigned after a scandal involving a murdered bookie.]]
* RippedFromTheHeadlines: {{Trope Namer|s}} via NBC's promos in the early 2000s. Almost all the stories are loosely based on real incidents, with things like the characters and outcomes changed.
** Their disclaimer: "[[ThisIsAWorkOfFiction The following story is fictional and does not depict any actual person or event.]]"
*** On some occasions, they've even had to doubly stress that the story that's just been on is fictional, even if they do acknowledge that viewers may find similarities to a real life case.
**** Some stations have been known to air a disclaimer of their own when the case the episode was ripped from was local, warning viewers that the story ''may'' be based on an incident that traumatized the area.
*** One episode, which demonized the Brooklyn DA's office, explicitly stated that the episode in no way reflected on the actual Brooklyn police department or DA's office.
*** A few episodes pull a RFTH trifecta: The 5/2/10 episode featured guy who (along with his sister) crashed a party at an executive mansion and jumped the security line at an airport. The third part implies that a senator is having an affair with the sister and his assistant takes the blame [[spoiler: but it's actually his wife who's having the affair with the aforementioned party-crasher/gate-jumper guy.]]
** Sometimes it gets out of hand. They've covered the Jon Benet-Ramsey case on three separate occasions, each with a different outcome.
*** The Paul Bernardo/Karla Homolka murders have been covered at least 3 times between the main series and the spinoffs.
** And then there's the "Melting Pot" episode in season 17, based on the murder of actress/director [[http://en.wikipedia.org/wiki/Adrienne_Shelly Adrienne Shelly]]. Adrienne Shelly guest starred in the Season 10 episode "High & Low".
** Subverted in the first season episode "The Serpent's Tooth." The case of the week strongly resembles that of the [[http://en.wikipedia.org/wiki/Lyle_and_Erik_Menendez Menendez brothers]]. The detectives are [[LeaningOnTheFourthWall aware of that case]] and [[WrongGenreSavvy focus on the kids to the exclusion of other suspects]]. As it turns out, the real killer is [[spoiler:the father's business partner, who's in TheMafiya]].
** One episode featured a Music/KurtCobain {{Expy}}, [[spoiler: who didn't [[NeverSuicide actually kill himself]].]] The episode focused on a dispute between a Music/CourtneyLove Expy and the surviving band mates, which was happening in Real Life at the time.
** This actually had very, very serious legal ramifications once. [[http://en.wikipedia.org/wiki/Andrea_Yates Andrea Yates]] was a woman who drowned her five children in 2001, and was found guilty and sentenced to 40-to-life in prison. However, during her first murder trial, one expert testified on the stand that a ''Law & Order'' episode had aired that was very similar to the Andrea Yates case, and that this may have inspired Yates to commit this crime. This, in fact, '''never happened'''.[[note]]A 1994 episode, "Precious", was a similar case where a woman smothered four of her children and cited "crib death", but this relationship wasn't conclusive.[[/note]] For this reason, the expert was forced to recant his testimony, and the jury decided that it was swayed enough by that fact to retry the case. Andrea Yates was then found Not Guilty By Reason of Insanity.
*** In a hilarious TakeThat move, however, LawAndOrderCriminalIntent aired an episode based on the Yates case, "Magnificat", in November 2004, a year after the verdict was overturned.
* RunningGag: The cops usually have to kick the soda vending machine by the stairs to get it to work.
--> '''Van Buren''': Damn! It ate my quarter!
[[/folder]]

[[folder: Tropes S]]
* SafeSaneAndConsensual: Sex workers in "The Drowned And The Saved" justify their client's predilection with [[spoiler: being dressed up as a Holocaust victim and participating in BDSM sex tapes.]]
** Also in "Stiff", where the lawyers almost say these exact words to defend their clients' creepy sexual kinks.
* SaltAndPepper: Every single season from the tenth onward.
** Lampshaded when Briscoe and Green go to arrest a major record producer, and [=McCoy=] comments on the irony of a black man and a Jew arresting a neo-Nazi sympathizer.
* SamusIsAGirl: Van Buren implies in "Aftershock" that when she first transferred into the 27th precinct as a lieutenant and Lennie first saw her, she wasn't what he expected.
* SayMyName: At the end of "Caviar Emptor", where the wife, Roya, [[spoiler: is acquitted because her husband, Asher, testified on the stand that he committed the murder. After the verdict is read, Asher is arrested in the courtroom, during which both start calling out each other's name. "Roya. Roya." "Asher." "Roya." "Asher." "Roya! Roya!!" "Ash-Asher..."]]
* ScareCampaign: Adam faces this numerous times when fighting for reelection, with the opposing party mainly attacking his reticence to apply the death penalty very often, and he would generally let his personal beliefs get in the way of his decisions. [[spoiler: In one particular episode, Adam was recused by the governor from a case because he refused to apply the death penalty to a man whom he believed was not deserving of it. In addition, his wife had suffered a massive stroke and he had to pull her off of life support in the end, which also explained his reluctance.]]
* SchiffOneLiner: {{Trope Namer|s}}.
** Pretty much every character pulls one of these sometime in the series. To varying degrees of moral ambiguity.
* SchmuckBait: Deconstructed in "Public Service Homicide". In the episode, a fictional reality TV show, "Hard Focus", calls child rape victims to come forward to report the pedophilic men who abused them. The show then stages scenarios where the rapists are lured to "young children's" homes under the pretense that they would have sex with the children, when in fact, the police would be waiting to arrest the rapists. The trope is deconstructed, however, when [[spoiler: it turns out that the real schmucks are the rape victims themselves; the TV executives just use them to get a MonsterOfTheWeek. Indeed, one TV producer armed a rape victim and had her enter her rapist's house to murder him and catch it on tape, just to increase viewings.]]
* ScienceIsWrong: Lots of religious fanatics.
** [=McCoy=], very sarcastically, invokes this at the end of "Talking Points". When Connie questions a very reluctant [=McCoy=] about his views toward Stem Cell Research, he replies:
--> '''[=McCoy=]''': If God created man in His image, than we've all ''degenerated'' from whatever's on that Petri dish.[[note]]He means to say that religious views regarding the morality or lack thereof of science are baseless considering that religion doesn't allow for the consideration of scientific views in the first place. According to him, saying that embryos on a Petri dish are human life is baseless when the Bible doesn't even consider the concept of embryos on a Petri dish.[[/note]]
* ScrewTheRulesImDoingWhatsRight: [=McCoy=] on quite a few occasions.
** When [[spoiler: Borgia is killed, [=McCoy=] arrests a corrupt DEA agent involved in her murder, but cannot charge him with a significant crime. So, he basically ''creates a fake grand jury'' to generate ''a fake indictment'' against the agent, by telling a witness to perjure on the stand; but it doesn't count, since it's still a fake proceeding. When a judge catches wind of this she shuts it down; [=McCoy=] releases the agent and tells the police to follow the agent, who is then killed by the mooks who killed Borgia. [=McCoy=] is able to catch the mooks and get justice for Borgia in the end, but Arthur is not pleased.]]
** One episode, "Under the Influence", had Jack [=McCoy=] team up with a judge to get a drunk driver [[spoiler: convicted of multiple counts of second degree murder as part of the judge's crusade. Jack went so far as to blackmail a witness into being out of the country during the trial and suppressed all evidence that the guy was drunk off his rocker when he committed the crime, with the judge DeusExMachina-ing on Jack's behalf all the way. Fortunately, during the trial, Jack came to his senses, and started to show the evidence that the guy was drunk (and so was guilty of Manslaughter, but not murder). The only reason the judge didn't report Jack's abuses in the trial was because he was in as deep. In that one, at least, they acknowledged that what [=McCoy=] and the judge were doing was wrong, and it's brought up several times later on as an example of [=McCoy=]'s willingness to engage in improper conduct if he thinks he can get away with it (nowadays lots of drunk drivers have started to face murder charges, so they could do this legally if the episode were written more recently).]]
** In "Monster". While [=McCoy=] is facing a hearing from the disciplinary committee due to his actions in "Under the Influence", [[spoiler: he still a doctor to ''lie in a deposition to a defendant'' that the comatose girl the defendant had raped may be recovering, when the doctor had determined that she was in fact terminal. This gets the defendant to confess to the crime, but when Jamie catches wind of this, she immediately resigns. After testifying against [=McCoy=] in the disciplinary hearing.]]
* TheSchizophreniaConspiracy: Averted in most cases, surprisingly. Especially in "Pro Se", where a man afflicted with a severe form of schizophrenia [[spoiler: murders three people,]] yet is able to pull off a severely compelling and genius argument that nearly defeats [[=McCoy=]'s.
** "Double Blind" subverts this trope. A college student diagnosed with schizophrenia murders a man whom he believed was a Knight Templar out to get him. The schizophrenia medication the boy takes is unable to repress his paranoia, and his SmugSnake doctor argues that mistakes are sometimes made with medication and clinical trials; that is, until [[spoiler: it's discovered that the boy actually doesn't have schizophrenia: he has a brain tumor. Which the doctor didn't detect because it turns out that he's a fraud.]]
* {{Seer}}: DoubleSubverted in the episode, "Seer", where the detectives [[spoiler: arrest a man who claims to have had a psychic vision about the murder, and they conclude that he was the real murderer. In reality, it turns out that he was a witness who repressed his memories of the crime after it happened, and convinced himself that he had a psychic vision.]]
* SelfDisposingVillain: Deconstructed in "Mad Dog", where Jamie criticizes [=McCoy=] for this. In the episode, [=McCoy=] hounds a rapist he is unable to convict so hard that eventually [[spoiler: the rapist's daughter murders him when she sees just how much of a monster her father is.]]
--> '''[=McCoy=]''': I'm sorry it had to happen this way.
--> '''Jamie''': [[WhatTheHellHero You're not all that sorry.]]
* SerialEscalation: As the concept of terrorism became more real to an American audience, more and more episodes dealt with more egregious instances of mass-murders, terrorist, and mob blocks.
* SeriesContinuityError: To be expected in a long series, but one in particular was in Season 17 episode "Murder Book", a RippedFromTheHeadlines situation based on the OJ Simpson trial, where [=McCoy=] talks about being unable to get past double jeopardy despite a bribed juror. However, a previous episode, "Jeopardy" dealt with exactly the same situation, and [=McCoy=] was noted for beating double jeopardy, wherein the judge was bribed.
** [=McCoy=] has pulled off extremely unethical and borderline dirty tactics to get perps to confess to their crime or to put them in jail. However, in the final episode of Season 17, he [[spoiler: submits a letter of resignation when Dr. Rodgers admits that she testified as to the incorrect novel from which the murderer may have gotten the idea for a certain crime. Neither did [=McCoy=] suborn this perjury, nor was this fact even remotely that important, yet [=McCoy=] somehow feels overwhelming guilt enough to put 13 successful years as an incredible Executive Assistant District Attorney behind him just for a minor incorrect detail.]]
*** This might have actually been done in response to the Andrea Yates trial: see RippedFromTheHeadlines for more info. [=McCoy=]'s fear at giving an attorney even the slightest grounds to appeal may have been influenced by the events of this trial.
* ShaggyDogStory: Frequently, the prosecutors and detectives go to great lengths to convict the defendant, only for the jury to be deadlocked (resulting in a mistrial), or for the obviously (to the viewer) guilty party to get off scot-free.
** One particularly memorable instance was in "Gunshow" (s10e1), [[spoiler: involving a defendant who ''was'' most certainly guilty[[note]]A gun manufacturer charged with Depraved Indiference Homicide for allowing their products to be modified into illegal automatic weapons because fixing the issue would cut into profits. A case that was based on the real life [[http://en.wikipedia.org/wiki/Intratec_TEC-DC9 Intratec TEC-9]][[/note]], and the jury agreed. Immediately after declaring him guilty, while everyone is celebrating as per usual, the defense attorney asks the judge to set aside the verdict, and the judge does so, admonishing the jury and ADA [=McCoy=] that they allowed their feelings to get in the way of interpreting the facts correctly. So [=McCoy=] won a ''very'' difficult court battle, and the defendant ''still'' got to go free. Though Jack's strongest piece of evidence (a memo proving the defendants knew about the issue at hand) was thrown out because it was privileged communication.]]
* ShellShockedVeteran: Played straight, sadly, with a few homeless veterans.
** However, at least two defendants in the series have claimed that the events of 9/11 have given them PTSD to justify murder.
* ShiftingTheBurdenOfProof:
** [=McCoy=] brilliantly pulls this off in "Hands Free". [[spoiler: When trying a defendant for the murder of a lover, [=McCoy=] is disallowed by the judge from using an allegation that the defendant murdered his wife ten years ago, so [=McCoy=] cannot establish a pattern of culpability for the defendant by claiming that he murders his lovers. So, he lets the defendant be acquitted for the current murder, then tries the defendant for the murder of his wife. From there, he is able to corner the defendant by convincing the jury about the pattern of culpability by which the defendant handles "accidents" (how the defendant reacts to situations in which his lovers die). The defendant is thus left unable to defend himself from ''this'' pattern [=McCoy=] established, and is found guilty for his wife's murder.]]
* ShowWithinAShow: Played with in "Swept Away: A Very Special Episode", which involves the police dealing with TV cameras filming them while they investigate a murder that occurred on the set of a reality show.
* SimpleCountryLawyer: Arthur Branch ''loves'' to play with this trope.
** He subverts it, however, as a character. He understands that many people view him as an uneducated "momma's boy" type and is able to manipulate the politics of his position effectively.
* ShoutOut: Serena is named after one of Dick Wolf's kids. The other two are [[Series/LawAndOrderSpecialVictimsUnit Elliot and Olivia]].
* ShownTheirWork: One of the more accurate Legal Dramas, mostly with regards to Prosecutors.
** While it doesn't go into minute detail (thank god), the show displays detectives following false leads and grilling painfully oblique witnesses. It also shows the prosecutors facing PR fallout for their decisions.
* SickSadWorld: Considering that law enforcement is forced to deal with some of the worst of society, it often feels this way.
* SignatureItemClue:
** Played with in "The Ring". In it, the detectives are able to prove that a woman's murderer cut her hand off and placed it in the rubble of the Twin Towers and stashed her body uptown, with the intention of making it look like she in fact died when the towers fell. [[spoiler: The purse recovered in the towers, however, was the victim's evening purse: filled with items one would carry when going on a date in the evening. Her husband, however, lies that the evening purse was her morning purse. Because of this, Serena is able to put two-and-two together and realize that since he was the only one who had foreknowledge of which purses his wife carried, and since he couldn't have made a mistake as to which purse was her morning vs. evening purse, he must be the true killer.]]
** In "Born Again", a psychologist is under suspicion for murder when [[spoiler: she uses bedsheets to simulate a little girl's act of "being born again", and the procedure results in the girl going into respiratory failure and suffocating and dying. It turns out that the little girl's mother coated the bedsheets in latex, to which the girl was allergic, and the girl instead suffocated on that. The mother was the only one who both knew that the girl was allergic to latex, and had access to latex gloves used in the procedure.]]
* SingleMomStripper: A married-mom stripper, anyways, in "Working Mom".
* SinisterMinister: In "Angelgrove", where [[spoiler: the leader of a Christian mission teaches his kids to use violent tactics against infidels, which directly incites a teenage boy to stone his mother, who was having an affair with a Muslim man. The Father is acquitted, unfortunately.]]
* SlidingScaleOfIdealismVersusCynicism: Serena, who is probably the most idealistic ADA in the series' run, has her moments of cynicism. Especially when in "The Ring", a woman's murderer stashed her hand in the rubble of the Twin Towers with the intention of making it look as though the victim died when the towers fell, when in fact, she had been murdered the night before. Serena presents this alternate theory to the victim's family and friends, who completely reject it; later, when speaking to Jack, this exchange results:
--> '''Serena''': People that knew her best seem to think that she was killed in a terrorist attack.
--> '''[=McCoy=]''': There's something to be said for closure.
--> '''Serena''': That's a better theory than mine.
--> '''[=McCoy=]''': Which is?
--> '''Serena''': They saw something heroic in being killed in a trade center.
--> '''[=McCoy=]''': (''silence'')
--> '''Serena''': It's been a long day.
* SlutShaming: Par for the course with every rape case. The victim gets taken through the ringer. In real life, Rape Shield laws exist to prevent this kind of thing.
** Taken to absurd levels in "Helpless", where [[spoiler: Dr. Olivet is fondled, then raped by a gynecologist whom she was investigating. Dr. Olivet gets taken through the ringer - par for the course - until the jury convicts the doctor... but then the judge sets aside the verdict because he believes the jury ''was too motivated by the shock that she was allegedly raped to judge the case fairly''. (What, because rape is shocking, the perpetrators get an automatic acquittal?) Thankfully, the gynecologist's acquittal prompts over ''fifty-four'' additional women to testify against him.]]
* SmallReferencePools: Part of the problem in getting plots that were RippedFromTheHeadlines was that stories that didn't receive national coverage or controversy weren't very popular in that specific reference pool. Episodes like "Deep Vote" and "Bitch", for example, were extremely popular because they lampooned the 2000 national presidential election and the Martha Stewart scandal, respectively. Episodes that weren't based on popular news stories didn't receive as much recognition or popularity, however.
* SmugSnake: Plenty throughout the years. Most get nailed -- [[KarmicDeath or answer to a higher authority]] -- in a satisfactory manner.
* SnuffFilm: "Performance"
* SolomonDivorce: Averted in "Dazzled", where the mother gets full custody of her two children. This leads to [[spoiler: the elder daughter being completely spiteful toward her father's new wife, and kills her because she believed that the new wife ruined the family.]]
* SomethingCompletelyDifferent: One of the most famous episodes, "Aftershock", is a look at the personal lives of the four principals the day they witness an execution - the first in New York state history since the moratorium was lifted (something that never actually happened in RealLife). There's no investigation, no trial, no homicide [[spoiler: until the closing moments, when ADA Claire Kincaid is t-boned and killed]].
** There are also the episodes "Mayhem" and "Couples", which focused almost entirely on Briscoe and Logan & Briscoe and Green, respectively, and had them investigating several unrelated cases on the same crazy day.
* TheSpock: Frequently [=McCoy=] and Stone, who tend to exploit the circumstances of the situation and pull outright gambits to get what they want. However, they're subject to normal human foibles, and sometimes due to their haste they end up losing an opportunity to convict.
* SpotTheImposter: [=McCoy=] pulls tests like these a lot in meeting rooms to get the true killer to confess. Notably in "Dazzled", where he incites two ex's on trial for murdering a woman to get into a shouting match in the conference room, [[spoiler: to get their daughter to scream, stop the fight, and declare herself to be the true killer.]]
* SpousalPrivilege: Pretty much cited by every married couple, happily married or not.
** [=McCoy=] takes this to an absurd length once. During the 15th season, [[spoiler: gay marriage was still illegal in New York State, but over 200 gay couples were married by a certain judge due to his interpretation of the statute. Thus, a homosexual couple in one case was able to express marital privilege to prevent themselves from testifying against one another; [=McCoy=], then, nullifies ''every single marriage'' done by the judge just so he can get one man to testify against his lover. Of course, this backfires when the man perjures on the stand because he's pissed off by [=McCoy=]'s tactics. But thankfully, the killer, to protect his lover, finally accepts a plea bargain.]]
* StatusQuoIsGod: Very few episodes mess with the formulaic MixAndMatch or the limited information about the characters. Those that do are cited to be clunky when juxtaposed with the other elements of the episode.
* StatuteOfLimitations: On certain felonies. [=McCoy=] got around it in one episode where he asserted that since the defendant had tried to cover up the crime, it was a perpetuation of the same felony, and that the statute of limitations did not apply.
* STDImmunity: Averted with Van Buren. Her cheating ex-husband gave her the human papillomavirus, which [[spoiler: eventually resulted in her cervical cancer.]]
--> '''Van Buren''': (''crying'') That no-good son of a bitch.
* StereotypeFlip: In "Bounty", pain-in-the-ass attorney Randy Dworkin almost pulls off a very compelling argument to the jury that his African-American client killed a bounty hunter due to negative stereotypes toward black people such as Affirmative Action. [=McCoy=] completely turns the entire case around when he bluffs that he will call Denise onto the stand, a woman the client might have slept with in Grenich, CT, despite the DA's office never having been able to locate her. The client, out of fear, immediately makes a plea agreement. At the end of the episode:
--> '''Dworkin''': Lawyer-to-lawyer... you never talked to Denise, did you?
--> '''[=McCoy=]''': No.
--> '''Dworkin''': Then how did you know?
--> '''[=McCoy=]''': I didn't. But I ''do'' know that ''I'm'' barely white enough to live in Grenich, CT.[[note]]Denise is white. If that fact were ever revealed to the jury, the client's whole "systemic prejudice against blacks" defense would've been shot.[[/note]]
* StereotypeReactionGag: [=McCoy=] is notorious for putting his [=ADAs=] on when he wants to portray something sympathetic toward the jury. Most notably when he asks Claire to cross-examine a battered woman, and she calls him out on this. [=McCoy=] acts surprised and replies, "I just want to win."
* SterilityPlague: The freaky realization certain women have in "Birthright", before realizing that [[spoiler: their doctor performed these procedures with their knowledge because they were drug-addicted women who gave birth to abused children.]]
* StockLegalPhrases: And how.
* StrawFeminist: Attorney Mildred Kaskel, who appears in "Mayhem" and "Blue Bamboo".
** She may have a point: in "Mayhem", her assertion that [[spoiler: a husband cheating on her client drove the battered wife to castrate him]] could very well hold water.
** However, she takes this to egregious levels in "Blue Bamboo", where she [[spoiler: exploits the victim's Japanese race to assert that the Japanese culture is at fault for her blonde, beautiful client's battered women's syndrome, and thus gave the woman a motive to kill the victim. Even though it's revealed that the client used passages and excerpts from battered women's books to sell her so-called condition to psychologists, she gets a not guilty verdict in the end.]]
* StrictlyFormula: With certain notable exceptions, every episode would begin with the commission / discovery of a crime (often, but not always, a murder) and would follow the police investigation through the viewpoint of the two main detectives assigned to the case. At about the halfway point, they would make an arrest, and the point of view would switch to the prosecutors as they prepared and conducted the prosecution in court or tried to make a deal with the suspect. Certain other scenes also tended to be codified as part of the formula:
** The discovery of the crime would often be preceded by a couple of random citizens, [[WhatHappenedToTheMouse who would usually never be seen or heard of again]], having [[SeinfeldianConversation a conversation about something completely unrelated]] before stumbling on the crime.
** At least one scene where the detectives would have to interview a person in a very busy office.
** Immediately after the arrest of the suspect, the show would cut to the suspect's arraignment, which would often be handled by [[DeadpanSnarker a very sarcastic judge]], of whom there seemed to be quite a lot.
** At the very end of the episode, the prosecutors would be discussing the case and the morals they'd drawn from it, which usually led to [[SchiffOneLiner a wry comment from one of them (often the District Attorney)]] before a fade to black and the familiar "Created by Dick Wolf" card. For variation, this might sometimes end with one of the lawyers [[WhamLine receiving a phone call that announces a sudden last-minute twist in the case]].
* {{Subtext}}: As mentioned, the show focuses on the cases, very nearly to the exclusion of the character's personal lives. All these things inform the characters actions and choices, but sometimes this was done well (Jack and the drunk driver), sometimes not. See SuddenlySexuality.
** Det. Curtis and Det. Bernard both had Catholic upbringings, and they are thus both able to relate to religious witnesses and suspects. However, they remain very fair toward nonreligious people.
** Det. Briscoe's failed marriages and parental transgressions both affect the way he views conventional families, leading him to immediately suspect spouses or children.
** Det. Green's [[spoiler: gambling addiction]] comes up a few times during the series, but it's still kind of surprising in his final episode where it's revealed that [[spoiler: he was paying off a bookie to keep his mouth shut about his and his girlfriend's addiction.]]
* SuddenlySexuality: "Is this because I'm a lesbian?" To be fair, it had been very subtly foreshadowed, especially with how eagerly supportive [[spoiler: Serena]] became at the slightest whiff of a gay cause, but this is one of those time when the general lack of focus on the characters' personal lives wound up biting them. That and [[spoiler: Serena's]] increasing [[StrawCharacter Straw Liberal]] tendencies masked any foreshadowing.
** Dick Wolf admitted he wrote the scene haphazardly, to shock the viewers, so any and all foreshadowing is probably unintentional and case of HilariousInHindsight at best. Indeed, prior to the 15th season, there are numerous indications that [[spoiler: Serena]] is straight, notably when she tells Jack that a male graduate student took her to prom.
* SuspiciouslySpecificDenial: Frequently done to parody BillClinton. When cops insinuate even the remotest possibility that a female may be having an affair with a male witness, the witness stands up and pulls some variant of "I never slept with her".
* SympatheticMurderer: Pick an episode. You have an 80% chance of finding a murderer with whom, on some level, one can sympathize.
[[/folder]]

[[folder: Tropes T-Z]]
* TakeThat: A thirteenth season episode opens with the cops repeatedly telling the CSI guys to leave the detectoring to them. They got everything but the basic facts of the crime wrong, and left some of the victim's property in her pockets instead of bagging it. ''{{CSI}}'' had been on the air for a few seasons by that point, and ''{{CSINY}}'' had recently premiered.
--> '''Briscoe:''' Those crime scene guys are all highly overrated; problem is, they all think they're cops.
** The season 4 episode 'Pursuit of Happiness' did this as well, with the tech guys offering a series of theories that Briscoe shot down as inane. This is more a [[HilariousInHindsight retroactive example]], however, as the ''CSI'' franchise hadn't debuted at this point.
* TakingTheHeat: Played mostly straight and occasionally for a DownerEnding when someone actually goes to jail to protect the real guilty party (or shield co-defendants).
* TaxmanTakesTheWinnings: The main motivation behind the conspiracy of "The Taxman Cometh", which involved [[spoiler: a lawyer who used a quack cancer doctor to prolong or cut short the lives of old men and women suffering from cancer to ensure that they would all die in 2010. This was because due to a loophole in the tax law, any inheritances would not be taxed provided that they were given up in 2010. This would result in the heirs receiving millions more than they would receive if their parents or grandparents had died in any other year, and the lawyer would receive much more in royalties.]]
* TeamDad: Adam Schiff, then Jack [=McCoy=]
* ThanatosGambit: In one episode, the victim had [[spoiler: set up his suicide to look like murder for hire, implicating his wife and her lover. This is only revealed at the very end of the episode, through a video will. Considering that the prosecution had chased their tails round and round again prior to TheReveal (the fact that the hitman the victim's wife allegedly hired was in jail at the time of the murder, the fact that there was no way to tie the wife's lover neatly into the crime), it's surprising that they didn't see this coming earlier.]]
* ThatWasObjectionable: Oh, boy. Lawyers love CourtroomAntics.
** Attorney Fallon (played by Giancarlo Esposito) is fired by his defendant in court in "Locomotion". As the defendant's standby counsel, he isn't allowed to really say anything, but at one point he steps up and says, "Objection! If... I'm even allowed to..."
** It's worth noting, however, that it's not so much the grounds of the objection that matter, but its timing. As defense attorneys press further and further while cross-examining the prosecutor's witness, the prosecution doesn't focus on really why the defense's statement was objectionable, but instead looks to cut off the line of questioning in order to keep the witness from being intimidated or revealing an expressly inconvenient fact.
* TheBusCameBack:
** Detective Curtis in a Season 20 episode, where he invites Van Buren to his wife's funeral.
** Jamie Ross in a Season 10 episode, where she plays a defense lawyer. [[spoiler: And she faces a hearing in front of the disciplinary committee at the end of the episode. Which is ironic, considering that one of the reasons she left was because Jack faced a hearing as well.]]
* TheCastShowOff: Jerry Orbach's talent at pool surfaces numerous times during the series. Notably, in "Everybody Loves Raimando's" Lennie Briscoe does cool trick shots to convince a [[spoiler: hitman]] that he's not a cop, then arranges a [[spoiler: meeting with said hitman to nail him.]]
* TheReasonYouSuckSpeech: Prosecutors tell this toward certain hostile witnesses. One example is in "Sweetie", where Cutter outright accuses a witness of being a hopeless stalker in order to [[spoiler: turn her against the defendant.]]
* ThemeNaming: It's probably a coincidence, but across the spinoffs there's been ADA Skinner, ADA [[TheBorgias Borgia]], [[Series/LawAndOrderCriminalIntent ADA Carver, Det. 'Gore'n]], ADA Cutter, [[Series/LawAndOrderUK CPS Steele, CPS Thorne]], and (probably a stretch) ADA [[Film/SweeneyToddTheDemonBarberOfFleetStreet Barba]].
* ThemeTune: There's a certain rock theme associated with the series -- it's remixed in a different manner for all the spinoffs.
* ThereAreNoGirlsOnTheInternet: Myra Camp, a computer hacker for the police who appears in a few cases, loves averting this trope. To the point where she flirts with Det. Green while she does her job. From Access Nation:
--> '''Green''': Can you pull up that file the way it was before it was changed?
--> '''Myra''': (''smirking'') I told you, detective. I can pull up ''anything''.
* ThereAreTwoKindsOfPeopleInTheWorld: Cops who use this trope, and cops who don't.
* ThereShouldBeALaw: Uh oh, someone's [[AuthorTract climbing on a soapbox]] again...
* TheyLookJustLikeEveryoneElse: Lots of defendants, but like the defendant in "Hubris," who is firmly established as a villain without ever doing anything evil or sinister in view of the audience.
* ThisIsThePartWhere: This is the part where detectives tell this to their suspects to threaten them with prosecution.
* ThousandYardStare: In Curtis's debut episode, while he and Briscoe are giving their investigation report to Van Buren, Curtis does this because a young girl was kidnapped and murdered, reminding him of his own daughters. Van Buren chastises him for being too emotionally attached to the case.
* ThreeDegreesOfMurder: Technically four: Murder One, Murder Two, and Manslaughter One and Two. The distinction between both manslaughter charges in New York is somewhat justified.
** Murder One is either premeditated, with the willful intention to kill, or it involves the sustenance of some sort of felony. To prove it, the murderer must have had extreme indifference to the life of another human being, have rationalized and planned the killing, and carried it out in a cold-blooded manner. Because of this, it isn't pursued as often as the lesser charges, but it does carry the death penalty.
*** For example, in "Terminal", a man who opened fire in a crowd actually meant to target a single person, but ended up killing both his intended victim and another innocent woman. He did it in order to [[spoiler: cover-up his scheme to fake travel tickets. Because of these iffy circumstances, the state's office wants to pursue Murder One (and, thus, the death penalty) for the crime, but [=McCoy=] and Adam are against it in this instance. So, [=McCoy=] is taken off the case, but the state fails to prove Murder One, settling instead for Murder Two.]]
** Murder Two is the most-commonly pursued crime. It involves either a depraved indifference to human life where the culprit didn't intend for the victim's death from the get-go, but still directly influenced his or her death. For Murder Two to qualify, the state must prove that the culprit willfully forfeited the life of another human being for their own safety.
** Man One closely resembles Murder Two in all but the seriousness of the perp's mental state. Man One applies when the perp had exigent mental circumstances which caused him to kill somebody out of passion, but not serious enough to qualify a "depraved indifference to human life". It's a Class B felony, which means it usually guarantees the possibility of parole.
** Man Two usually applies to people who cause or aid someone else in committing suicide. It's a Class C felony, which means very little jail time is involved.
*** Although, in "Tabloid", a man who gunned down a reporter is sentenced to Man Two, mainly because the [[AssholeVictim victim was a major asshole who chased down his wife]] and directly caused her to get run over by a taxi, but received a minor sentence. Even though [=McCoy=] is able to prove that [[spoiler: the man actually killed the reporter over a major news story cover-up and that he has exploited the tabloids his entire life,]] the man is still sentenced to no more than seven years. And is seen giving interviews to the press in the final moments of the episode.
* TimeDelayedDeath: Lots throughout the series. Notably in one episode where a man is pushed under a truck, which prompts the detectives to go after a homeless guy who left an impression on the bystanders. It turns out that the man had actually died from a bullet in his chest.
* TokenMinority: Even S. Epatha Merkerson admits that Anita Van Buren was one. Prior to her arrival and even during much of her time on the show, Van Buren was actually an exception; no black woman had been promoted to the title of lieutenant in the NYPD.
* TookALevelInBadass: Serena in "DR 1-102". See NoGoodDeedGoesUnpunished for more info.
* TropeTelegraphing: See PerpWalk and NarrowedItDownToTheGuyIRecognize.
* TrophyWife: Completely subverted in [[spoiler: "Mega", where a husband and wife start a large scheme to defraud their clients, which results in the seemingly innocent wife declaring no involvement in the ultimate conspiracy. In fact, she pulled a ruthless BatmanGambit which resulted in her getting everything she wanted, and laughing in Abbie and [=McCoy=]'s face in the end.]]
* TriangRelations: Considering that there are 456 episodes, you can bet that every single one of these has appeared at least once.
* [[http://tvtropes.org/pmwiki/pmwiki.php/Main/Ubermensch Ubermensch]]: A few throughout the years. They tend to fascinate Dr. Olivet and Dr. Skoda.
* UndercoverAsLovers: Completely averted by the Chinese government in "Take-Out", where [[spoiler: it intentionally sends ugly men to do espionage business with women so to not generate even the remotest possibility of love complications.]]
* UngratefulBastard: Too many to count. "The Sixth Man", for example, has a famous basketball player who flaunts his money and power, and throws it all away to solely protect his pride.
* UnresolvedSexualTension: Between Connie and Cutter. Lampshaded frequently by [=McCoy=] and the characters themselves.
** Subverted with Kincaid and [=McCoy=]; they seem to be merely flirting in many of their interactions, but there are some heavy implications during and after Kincaid's stint that indicated that they slept together.
* UnspokenPlanGuarantee: Played straight a lot. Some of [=McCoy=]'s best gambits are those where he preempts everyone - even his [=ADAs=] - into getting or revealing information, before he exploits it in the end when he brings those involved in the case into the interview room and confronts him with the information. Conversely, when [=McCoy=] gets all headstrong about a plan (notably in "Under the Influence"), it has bad consequences for him down the road.
* UselessSecurityCamera: Frequent. One episode has a DoubleSubversion: a store camera is both active and shows the killer dragging his victims to where he kills them. The only reason it doesn't get used is because the killer had the video and the trick police used to stall him so he couldn't destroy the evidence before a search warrant arrived was more than the judge was willing to let slide. - See the entry in HollywoodLaw for more information.
** In 'Strike!', from season 18, the detectives learn that their victim deliberately turned away a security camera so he could get in a fight without being seen. They gripe that the victim screwed up his own murder investigation.
* ViewersAreMorons: In case you should ''ever'' forget that almost all of the stories are RippedFromTheHeadlines, in many episodes, a character will [[LampshadeHanging casually mention]] at least once exactly ''which'' famous case their case is based off of or reminiscent to.
* VigilanteExecution: The sheer number of times this has happened in the courts, New York must have the worst courtroom security in the world.
** When the mentioned vigilantes are apprehended, expect the majority of lawyers to cite [[WhoShotJFK Jack Ruby]], claiming that the vigilante might not necessarily have been part of a conspiracy. 99% of the time, this is bullshit.
* VillainWithGoodPublicity: Governor Shalvoy, to an infuriating extent. His cronies are willing to overlook his transgressions (prostitution, bribery, corruption, scandals, you name it), because of all the positive legislation he's helped to pass... and maybe because he's been paying them off.
** In "The Sixth Man", [[spoiler: the jersey of a basketball player convicted for murder sold out overnight, becoming one of the biggest items of sports memorabilia.]]
* VomitingCop
* WeWillHaveEuthanasiaInTheFuture: In "Called Home", a doctor who disseminates information on how to commit suicide says this.
* WellIntentionedExtremist: In "Patriot". Especially so when it's revealed that the victim was indeed a [[spoiler: terrorist, and was planning to organize an attack before killed by the defendant.]]
* WesternTerrorists:
** In "American Jihad", a young white college student turns toward radical Islam, which is somewhat of a subversion, given that Islam isn't a faction of choice from terrorists originating in the West. [[spoiler: It turns out he did it to justify his own impotency and violent fantasies toward females.]]
** The Columbian and Russian mobs are tackled in multiple cases. Ben has a beef with both throughout his run. The latter [[spoiler: ends up killing a witness whom he coerced to testify, which results in his resignation from the DA's office.]]
** The Season 2 episode "Heaven" dealt with [[spoiler: a Latino politician using his office to hand out forged green cards to his mostly-illegal constituency. When the plot is threatened to be uncovered, he pays off a hit-man to burn down a nightclub with over 50 Hispanics and Latinos, most of whom were illegal.]]
** After the Oklahoma City bombings, more homegrown, radically right-wing American factions were shown. "Nullification" was a good example.
** There were also at least a couple episodes dealing with neo-Nazi factions, such as "Evil Breeds" and "Hate".
** Later episodes mainly deal with Italian mobs, notably "Everybody Loves Raimando's" and "Payback".
* WhamLine: In "Prince of Darkness", in which a couple is murdered in a restaurant, [[spoiler: every single person related to the crime - the husband's mother, the husband's employer, the killer, the killer's girlfriend, the gun-dealer who sold the perp the semiautomatic - are all murdered by the Columbian mob.]] When Ben asks Adam what happened to the couple's four-year-old daughter, the relieved District Attorney says that she was picked up in school by her uncle, until [[spoiler: Ben says, "She doesn't have an uncle."]] Cue Adam's shocked expression and credits.
* WhatHappenedToTheMouse: When Paul Robinette was first written out of the series, no reason was given. It would not be until Season four was released on DVD, a deleted scene was included explaining his vanishing as him leaving to join a wall street law firm.
** Briscoe's death wasn't even mentioned until long after it happened.
** Detective Profaci, a regular Law and Order background character vanished around season seven of the series. His fate was revealed in the TV movie "Exiled", which revealed that he was arrested and sent to jail after helping a mob boss arrange a murder, in exchange for money that was used to pay for fertility treatments so that his wife could become pregnant.
** In "Mayhem", a Season 4 episode, the first murder reported involved a man reported to have thick black glasses shooting an actor having sex with a girl in a car. Briscoe and Logan arrest a suspect, but they learn that the suspect was not the killer ([[spoiler: after the suspect tragically dies in prison)]], so they never found the real killer. Until Season 10's two-part cross-over with Series/LawAndOrderSpecialVictimsUnit.
* WhatTheHellHero: Often pulled on [=McCoy=] when he goes overboard, saving him from being a {{Jerk S|ue}}tu (though not always).
* WhereDaWhiteWomenAt: The main plot behind "Good Girl". The case devolves into such political mania that finally, when apparently neutral ground is finally reached, this exchange results:
--> '''Jamie''': I just remember what it was like to be in love at that age.
--> '''[=McCoy=]''': (''chortles'')
--> '''Jamie''': Did I say something funny?
--> '''[=McCoy=]''': Almost forgot what started this circus. Two kids in love.
* WhereEverybodyKnowsYourFlame: In "Sideshow" part 2 (the HomicideLifeOnTheStreet crossover), where the detectives investigate a very girly lesbian bar filled with [[LipstickLesbian Lipstick Lesbians]] all around. And it turns out that a witness [[spoiler: had had two affairs with two regulars in that bar.]]sw
** Some gay bars throughout the series love showing [[{{Leatherman}} Leathermen]].
* WhosOnFirst: Mentioned by name by Lennie Briscoe in "Tragedy on Rye" when Ed Green tells him that it was Music/ElvisCostello who played a Rickenbacker, ''not'' Music/ElvisPresley.
* WickedCultured: A number of defendants, notably those in "Merger" or "Mega".
* WoobieDestroyerOfWorlds: The angry, suicidal blogger who's planning on shooting then blowing up a school in the series finale [[spoiler: is actually a teacher, driven to homicide by a molestation charge (he was trying to stop a rebellious student from peeing on his desk), losing his girlfriend because of said accusations, and being forced to spend months with other teachers who were also metaphorically put on a bus for being unprepared for classroom problems and a hyper-sensitive system geared to protecting students at all costs, even if it's the students who caused the disruption in the first place. Oddly, it's implied that he didn't have any sympathy for the other teachers, he just didn't want to be with them.]]
* WorstNewsJudgmentEver: Especially whenever there's a substantial bounty promised to anyone with information. Expect racial profiling to be thrown around the press.
** In "Submission", a newscaster does this intentionally. She is [[spoiler: in a complicated love-triangle affair, where one man she sleeps with had his wife recently murdered, while the other is the aforementioned man's best friend who has lucrative businesses in selling knockoff wine and dog-fighting. She drops fake news stories and then tells Cutter and Rubirosa that she did it for the husband, leading the attorneys to arrest him. However, it turns out that the best friend is the murderer because he silenced the wife, and used the newscaster to plant incriminating evidence against the husband.]]
* WorthlessForeignDegree: In the first episode, an Indian doctor is reticent to testify against his prestigious boss, because doing so would get himself fired. And in the medical world, social skills are far more valued than integrity and expertise, as portrayed in the episode.
* WrongGenreSavvy: The rich families who ''don't'' get away with their crimes are usually this. Notably the politician in "Family Hour", who is a belligerent SmugSnake throughout the entire proceeding.
* WrongSideOfTheTracks: The defense lawyer in "Darwinian" claims that since the jury is filled with middle- to upper-class citizens with no knowledge of what it's like to step in a homeless person's shoes, [[spoiler: they cannot convict her homeless client for murder.]] Jack completely rips apart her argument by saying that if the jury denied a guilty verdict for the client, then [[spoiler: they would be denying justice for the victim, or anyone on the opposite end of the socioeconomic spectrum.]]
* WriterOnBoard: With varying degrees of obviousness.
** For example, in "Precious", [=McCoy=] argues that [[spoiler: he would agree to a plea, provided that the mother who killed her children would be sterilized. Sam Waterston was reportedly outraged at even considering that his character would take such a stance, and even debated it with a scriptwriter on the set before conceding his position.]]
* XanatosGambit: In "Empire", [[spoiler: a business mogul who used JuliaRoberts's character to kill a public figure did it to subvert the approval he needed to finance a bond to construct a large football stadium. The prosecution is successfully able to convict the mogul for murder; however, the trial itself bought him just enough time to fully subscribe his bond to the construction of the stadium. In addition, he becomes a VillainWithGoodPublicity in the end, as the construction of the stadium carries his name, and thus his power, with it. To put the icing on the cake, JuliaRoberts's character, who contributed to the murder in the first place, gets away scot-free by [[BewareTheNiceOnes portraying herself as a poor, poor girl seduced by Det. Curtis]], and thus also profits from said construction.]]
* XanatosRoulette: "Lucky Stiff" involved a man [[spoiler: sleeping with his stepsister, murdering his father and stepmother, and making volatile financial stakes in his father's businesses. He was able to thus predict the values of the stocks of the companies and shares he was invested in by being constantly kept in the loop of his father's shady business practices. He thus used the same volatile financial stakes his father used, as part of a get-rich-quick investment scheme to rip off his stepsister.]]
* YouAreWhatYouHate: In "Promote This!", where one teenage boy [[spoiler: who kills illegal immigrants is half-Latino. It turns out that his mother had bred a feeling of cultural and class superiority in him, to the point where he hated all low-class citizens, regardless of whether or not they were his race.]]
* YouLookFamiliar:
** A particularly weird case: While Lennie Briscoe became the face of the franchise for the better part of the series, actor Jerry Orbach first appeared in the second season as defense attorney Frank Lehrmann. Every bit as much of a DeadpanSnarker as his later detective character, Orbach's attorney character is remembered for the line "It's called plea bargaining, not plea scalping!"
** Equally strange examples include S. Epatha Merkerson playing the bereaved mother of a murder victim years before she was cast as Lieutenant Van Buren, and Annie Parisse playing the stripper girlfriend of a defendant shortly before being cast as ADA Borgia. Parisse allegedly wanted to play the same character and claim that she had been working as a stripper to pay for law school, but Dick Wolf wasn't keen on the idea.
*** Not without reason; in story, initially Jack wasn't keen on Abby becoming his assistant due to her inexperience- she'd been an ADA for five years at that point. Given the short timespan between Annie Parisse's appearance as a stripper and her debut as Borgia, it would stretch credibility that she went from paying her way through law school to climbing the ranks of the DA's office in such a short amount of time.
** Additionally, a clean-shaven Jeremy Sisto appears as defense attorney Clint Glover in the season finale of the 17th season. In the very next episode, he returns as a scruffy Detective Cyrus Lupo and continues this role for the rest of the series.
** Several character actors appeared numerous times in the series, each time in a different role. As an example: comedian Larry Miller appeared three times -- twice as a husband who hired people to murder his two wives, and once ''as himself''. During his appearance as himself, Miller's "resemblance" to the wife-murderer is lampshaded by Detective Green.
*** It's a bit off-putting when a certain actor (Paul Calderon, to be specific) appears as a pedophilic child rapist who pours insecticide on a 10-year-old girl in one episode, reappears as a particularly good lawyer in another, and then reappears as a decorated war veteran acquitted for assaulting and killing a college student in another.
** Zeljko Ivanek made one appearance on Law and Order as a smug corrupt businessman, convicted for murdering an elderly man who swindled money from him (which he had, in turn, swindled for his wealthy friends) who managed to get acquitted after the police actually find the body years later. After that, he made at least two appearances as his [[HomicideLifeOnTheStreet Homicide]] character before making another appearance as a different character. Ivanek also appeared on SVU alongside [[JustForFun/JohnMunch Richard Belzer]], who he had previously starred with in Homicide.
** Tamara Tunie appeared as a defense attorney in the L&O episode "Deadbeat" before she landed a role in ''Series/LawAndOrderSpecialVictimsUnit'' as Dr. Melinda Warner.
* YouDidntAsk: Lots of lawyers and witnesses. The detectives usually aren't pleased.
* YourPrincessIsInAnotherCastle: Played straight with many evasive witnesses. Also, scarily enough, some kidnapping victims.
* ZeroApprovalGambit: Lots of characters, from Adam to Det. Green. See ScareCampaign and FallenHero for more details.
[[/folder]]

!!Executive Producer(s): The Tropers
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