->''"Dear Points of View, I watched Silent Witness with the sound off and it didn't make any sense."''
-->--'''Frankie Boyle''', ''Series/MockTheWeek''

British [[ForensicDrama crime/forensic series]], running from 1996 onwards, [[LongRunner now in its twenty-first series]], making it the fourth oldest currently airing crime drama in the world and the longest that isn't German (''Series/{{Tatort}}'' is the winner, the German show having run since 1970).

Starred Amanda Burton for the first eight series, until [[PutOnABus her character was written out]] in a plot involving a reunion with a LongLostRelative and a trip to Northern Ireland.

The series now revolves around the activities of [[PowerTrio three]] (later four) Home Office pathologists (Nikki Alexander, Jack Hodgson, Thomas Chamberlain and Clarissa Mullery as of the 2014 series) as they investigate murders in London, though they sometimes help outside the city and at least one story per season will usually feature them going abroad.

Could be considered a UK version of the ''Series/{{CSI}}'' franchise, but lacks its flashiness (although it has elements of the wider investigating role); it also predates it. Like ''Series/WakingTheDead'' (which predates ''Series/{{CSI}}'' as well), it is done in two-parters, with each story shown over two days in the same week.

Has a [[Characters/SilentWitness character page]].
!!This show contains examples of:

[[folder: Tropes # - B]]
* TheNineties: The first four or so seasons took place then.
* AdultFear: Several examples:
** The Season 18 story "Protection", which revolves around social services and child abuse, is full of this.
** In "Squaring the Circle", DI Sarah Parks' young daughter has cancer and she is trying desperately to raise enough money to pay for treatment which could save her life.
** Thomas Chamberlain experiences this when he learns a sniper on a killing spree could be targeting the school his daughter attends.
* ArtisticLicense: DNA testing. In the series, DNA tests apparently take a few days, tops. In real life, they can sometimes take up to 12 weeks. Justified in that it would be a bit dull watching the characters sit around waiting for DNA tests. That, and the reason DNA testing can take so long is because of the massive amount of samples coming into the lab everyday. Cases deemed a high priority (such as murders) tend to get bumped up the list faster and so get processed more quickly.
* AssholeVictim: Comes up occasionally. Some major examples include:
** [[spoiler: Umer]], a member of the gang grooming and kidnapping teen girls to be [[SexSlave sex slaves]] in "And Then I Fell In Love", who is [[spoiler: [[NoHoldsBarredBeatdown beaten to death]] by the stepfather of one of his victims after she [[DrivenToSuicide committed suicide]]]].
** "Buried Lies" has [[spoiler: Gary]], an abusive drunk who [[spoiler: [[DomesticAbuser beats his wife]] and [[WickedStepfather stepchildren]] and did the same to his ex and her baby, let his young stepdaughter drown because she was ‘annoying’ and breaks into Sam Ryan’s home, rifles through her underwear and [[{{Squick}} sniffs and burns holes into them]]]]. He winds up being [[spoiler: non-fatally stabbed by his stepson after he tries to attack the boy’s mother]].
** [[spoiler: Hearns]], one of the main villains of "Trust", who kidnaps, experiments on and kills around three innocent people, and actually ends up [[spoiler: being killed by the man he was blackmailing and framing to create anthrax by poisoning him with the [[KarmicDeath same drug he used on him]] – on top of that, one of his victims was the man’s ''wife'', who was ''pregnant with their child'']].
** [[spoiler: Sean Patrick]] in "Protection". He is [[spoiler: stabbed in the head with a [[HooksAndCrooks meat hook]] after the killer learned he had raped and impregnated both his daughter and granddaughter, tried to push the blame on his daughter’s husband resulting in the kids being taken into care, [[NeverMyFault blamed his granddaughter for ‘making’ him rape her]] ''and'' killed his son-in-law to cover up the truth]].
* AttemptedRape: [[spoiler: Happens to Sam in Series 7.]]
* AwesomeByAnalysis: All the main characters, as per their jobs as forensic pathologists.
* TheBadGuysWin: Several times. Examples include:
** "Safe": [[spoiler: The team fails to get a gang leader convicted for murder, or even for breaking dangerous dogs laws (since he illegally owned a dog that savaged one of his victims to death). The evidence finally gets him jailed for raping an underage girl, but he'll still be out sooner than he would have been with a murder conviction - and his gang is still active and grooming young boys to join them.]]
** "Commodity": [[spoiler:Terrorists got away with over two million pounds' worth of blackmail money, ended an innocent man's career by shooting him in the leg (he was a professional footballer), and will probably continue to attack Jewish/Israeli targets.]]
** Zig-zagged in "Awakening": [[spoiler: On one hand, no one from the cartel is brought to justice, Eva is murdered and the cartel still have informants inside the security detail, but on the other, the hostages, including Luisa, are rescued and Nikki escapes with her life]].
* BatmanGambit: In "After the Fall" [[spoiler: Lydia's plan to frame Nikki for murder heavily revolves around this. It fails, though only just]].
* BerserkButton:
** A murder suspect in "In a Lonely Place" finds out the hard way that openly admitting to hitting, and then insulting, a recently murdered woman around Jack is [[NoHoldsBarredBeatdown a bad idea]].
** In "Redhill", the usually levelheaded Leo punches a corrupt prison guard in the face for threatening his girlfriend.
* BetterManhandleTheMurderWeapon: Justified. In "Bloodlines", Harry wakes up in Budapest to notice his girlfriend has been stabbed to death in bed next to him. As he finds the murder weapon , a knife, the murderer comes walking in, causing Harry to take the knife to fend him off. The murderer, in a fit of [[GenreSavvy genre-savviness]], simply disarms Harry and leaves him behind to be found by the Hungarian cops.
* BigScrewedUpFamily:
** The family in "Domestic", very much so. For context:
*** The family is a ‘blended’ one, consisting of a married couple, the husband's son from his previous marriage which ended in [[TheLostLenore his wife’s death]], the wife's daughter from a previous marriage that ended in divorce (though [[AmicableExes she, the ex and her new husbands are all still friends, having known each other for years]]), and the new couple’s baby daughter. Everything seems hunky dory…until one day the wife reveals to the husband that [[spoiler: [[MamasBabyPapasMaybe his son isn’t biologically his]] but ''her ex’s'' due to him [[YourCheatingHeart having an affair with his dead wife]]. Why did she tell him this? Because she recently found out that [[SurpriseIncest her daughter and stepson were sleeping together]], being under the impression they were [[FlirtyStepsiblings just stepsiblings]]. The husband [[UnderStatement doesn’t take this well]] and proceeds to ''murder'' his wife and stepdaughter and tries to murder his son (he barely survives and winds up in a coma)]], leading to the events of the episode. [[spoiler:When it comes out that the husband is the killer, he reveals he even considered murdering his [[WouldHurtAChild baby daughter]], but decided not to because she was actually biologically his and “his future”…even though because he got caught, [[AllForNothing he’s going to prison for the rest of his life and will probably never see his daughter again]]. The teen son wakes up from his coma: hurray! Only, now the ex (his real father) has the [[SarcasmMode delightful]] job of telling him just why he’s been in a coma and the rest of his family have been brutally killed]]. And even before the murders [[spoiler: and the accidental incest]], the family wasn’t exactly stable, what with [[spoiler: the affairs]], the fact that the wife is implied to [[AlwaysSomeoneBetter be jealous of her husband’s dead first wife and feels he constantly compares them]] and the 'little' incident at a party a few years before the murders, where she briefly planted a kiss on [[HotScientist Harry]] whilst her husband was in the next room.
** ''Two'' families in "Protection". The family of the missing girl, Lizzie, consist of a very dysfunctional estranged couple who are borderline abusive to each other and let their kid witness it all. [[spoiler: It gets worse when it turns out that the parents have been keeping poor Lizzie hidden this whole time after finding out she'd been sexually abused and accidentally killed her attacker' their reasoning being [[ItsAllAboutMe they didn't want her to be taken off them]]]]. The other family has three kids that have been taken into care against the will, with the eldest child Kevin [[DontSplitUsUp trying desperately to keep them altogether]]. His grandfather reveals the reason they're in care is because [[spoiler: his younger sister got pregnant after being raped and they believe his stepfather, whom his mother refused to leave, is responsible]]. And then, it turns out [[spoiler: the real rapist is the grandfather ''himself''. And as if that weren't bad enough, he raped his daughter too...and is Kevin's father ''as well'' as his grandfather]].
* BreakoutCharacter: Nikki Alexander, played by Emilia Fox. She didn't appear until part way through Season 8, as part of an ensemble cast, but most people now regard her as the star of the show; she usually gets the most focus in the stories, her name appears first in the opening credits and she's the most prominently featured character in advertising. Some people who started watching in the mid-2000's are surprised to learn Amanda Burton was originally the main character.
* BritishBrevity: Averted with the show being renewed for a 20th season to air in 2017; however, with only around 10 episodes per season, each season is much shorter than an equivalent show in the US.
* BrotherSisterIncest
** [[spoiler:The Doshi siblings in "Squaring the Circle"]].
** Teenage siblings in [[spoiler: "Domestic" (though in their defence , they [[SurpriseIncest didn't realise they were blood related]]).]]
* BuffySpeak: With regards to their chosen profession, Harry, Nikki and Leo are usually very eloquent and specific. However, explaining things to the detectives they work with (and, by extension, the viewer) sometimes necessitates simpler language. That, and they don't know everything.
--> '''Harry:''' It's a data thing.
--> '''DC Salch:''' Yeah. It's a micro SD card; from a phone.

[[folder: Tropes C - I]]
* CartwrightCurse: At least two of Harry's love interests were murdered by the end of the story.
* ChuckCunninghamSyndrome: There is no explanation ever given for Fred Dale's departure after the third season.
* ConditionedToAcceptHorror: Played with. Most of the main characters aren't really that bothered by grisly crime scenes and horrific murders, because it's part of their job, though there are occasionally cases that get to them, [[ChildrenAreInnocent usually if there's kids involved]].
* CrammingTheCoffin: In "Hippocratic Oath", a hearse crashes and two bodies are discovered in the coffin. The team is charged with discovering the identity of the John Doe corpse.
* DeadpanSnarker: Clarissa Mullery. Harry Cunningham also had his moments, although he also had a tendency to be a PungeonMaster.
* DerailingLoveInterests: Many of Nikki's and Harry's (and later Jack's) temporary love interests go through this in order to [[StatusQuoIsGod restore the status quo]] of the unresolved {{UST}} between Nikki and the guy.
* DiggingYourselfDeeper: Thomas Chamberlain frequently does this.
* DisappearedDad: Sam's nephew Ricky's dad and Nikki's dad.
* DisposableSexWorker: Several of these show up in different episodes. A prominent example is "In a Lonely Place" where a stripper testifies to Jack that the police told her to stop wasting their time when she reported a co-worker missing.
* DisproportionateRetribution: In "After the Fall", the villain [[spoiler: tried to frame Nikki for murder and have her killed because she blamed Nikki for getting her husband convicted of a crime he didn't commit. Nikki herself points out that she was just doing her job by offering expert testimony, that she can't control what the judge and jury decide and that it certainly didn't warrant the murders of three innocent people.]]
* DontSplitUsUp: A major plot thread of the episode "Protection" is a teenage boy trying to reunite his siblings who were separated by social services, and prevent the youngest from being adopted.
* DownerEnding: [[spoiler: "Greater Love" ends with Leo sacrificing himself to save everyone from a terrorist bomb explosion in Afghanistan that was set off by a brainwashed British soldier believed to be dead (the discovery of what was believed to be his body was the whole reason the team were in Afghanistan in the first place). No one is brought to justice for any of it, either.]]
* DrivenToSuicide: Harry's dad suffered from severe, chronic depression and killed himself when Harry was 11. [[spoiler: In "Run", a family friend (who had an affair with Harry's mum) also committed suicide in the same way, although in his case it was because he had been diagnosed with incurable pancreatic cancer.]] Also one of the many possible reasons for the body-of-the-week.
* DropDeadGorgeous: Averted -- naked bodies in the autopsy scenes look like dead murder victims.
* EnfantTerrible: In one story, it is revealed that a spree killer's accomplice is a very mentally disturbed sixteen year old boy.
* EverybodyIsSingle: [[AvertedTrope Leo]] was married with a daughter until they were both tragically killed, and he eventually entered a long term relationship with [[TheProfiler a profiler]]; Harry and Nikki, though, will usually end up dating either the victim, the killer, or someone who just ends up getting in the way. Also played straight with Jack and Sam, averted with the HappilyMarried Clarissa and double subverted with Thomas (he starts out married, but his wife then asks for a divorce).
* FakingTheDead: The apparent death of [[spoiler:Harry]] in the Budapest story - to the point where the actor's name was taken off the credits. In reality, [[spoiler: Harry killed the attacker and set fire to his body, leaving his own ID with him]]
** In "True Love Waits", a woman has faked her death for over a decade (with the help of her friend, a detective) in order to frame her violent husband for her murder. The detective managed to have him jailed [[NeverFoundTheBody despite there being no body]]. It turns out to be just as well, since the guy is a serial killer, and immediately starts up again once he gets out of jail.
* FanDisservice: The majority of the nudity depicted on the show consists of naked corpses in autopsy scenes.
** Also arguably the strip club scenes in the Season 17 story "In A Lonely Place", seeing as most of the half naked girls performing lap dances and the like are being exploited by sleazy guys, physically attacked by some punters and [[spoiler: stalked by a serial killer]].
* {{Fanservice}}: Jack gets to take his shirt off on several occasions (often justified in that cage fighters often fight shirtless, but still).
* FanServicePack: Harry grows his hair and Nikki dyes it between seasons 11 and 12.
* FingerprintingAir: Usually averted; the team generally only find partial fingerprints or can't match them to anyone on the database, and in cases where the victim has been submerged in water or set on fire, they'll often point out they're unlikely to get fingerprints.
* {{Fingore}}: "True Love Waits" involved a serial killer who would murder women and cut off their ring fingers as trophies.
* {{Foil}}: Sam Ryan and Nikki Alexander, who replaced the former as the main female character on the show. Sam starts out as an [[SeenItAll experienced]], [[IceQueen somewhat cynical]] pathologist who [[SugarAndIcePersonality doesn't always play nicely with others but has a softer side]], whilst Nikki starts out as a [[NaiveNewcomer newly qualified]] pathologist, is somewhat [[WideEyedIdealist idealistic]] and [[TheHeart wears her heart on her sleeve]], who gradually [[OlderAndWiser becomes thicker-skinned]].
* FourTemperamentEnsemble: The current cast, arguably: Nikki is usually Sanguine (though not really disorganised or self-centred), Jack is usually Choleric (though more emotional than some), Thomas is Melancholic and Clarissa is Phlegmatic.
* FragileFlower: Nikki, though [[BreakTheCutie largely justified]].
* FreudianTrio: The most common permutation has Harry as the logical [[TheSpock Spock]], Nikki as the emotional [[TheMcCoy McCoy]] and Leo as the balancing [[TheKirk Kirk]], although this can change depending on who gets the most emotionally involved in a particular case.
* GenderEqualEnsemble: The current main cast is this: two women (Nikki and Clarissa) and two men (Thomas and Jack).
* GPSEvidence: Comes up a lot, though generally done in a realistic manner.
* HappilyMarried: Leo [[spoiler: until his wife and child were killed in a car accident.]]
** Clarissa is, though she prefers not to work with her husband.
* HeadbuttOfLove: Nikki and Harry had a few.
* HeroicSacrifice: [[spoiler: Leo in "Greater Love", by dragging a suicide bomber away from the crowds to prevent any casualties and getting blown up in the process.]]
** Another prominent example is [[spoiler: Nikki in "Awakening", who, knowing they cannot reach both in time, gives Jack the location of some thirty hostages instead of her own, whilst she is BuriedAlive. Fortunately, she manages to escape by herself at the last minute]].
* HollywoodAtheist: Averted with Harry who, although explicitly an atheist, is not portrayed in a negative light for it.
** Also averted by Jack, as Harry's SuspiciouslySimilarSubstitute.
* HonorRelatedAbuse: One plot strand of "Sins of the Fathers" involved the team investigating a body found inside the wreckage of a Vietnamese restaurant, which was burned down after the man that the owner's daughter was betrothed to found out she wasn't a virgin.
* HotScientist: Nikki Alexander, played by Creator/EmiliaFox.
** Harry Cunningham, played by Tom Ward, and Jack Hodgson, played by David Caves, have plenty of fans swooning over them too (especially in the latter's case, with Jack getting to take his shirt off on numerous occasions).
* HugeGuyTinyGirl: A platonic example with Clarissa and Jack. Clarissa (Liz Carr) is under 5ft and looks even shorter at times due to using a wheelchair, whilst Jack (David Caves) is over 6ft and quite muscular. A more downplayed example is Jack and Nikki; she's almost a foot shorter, though because she often wears heels she doesn't look it. Jack makes a point of calling her "shorty" when she takes her heels off in one episode to carry out a height experiment relating to the current case.
* IdentificationByDentalRecords: Used occasionally. In one case, Nikki was able to figure out that the body of a young woman was not [[spoiler: an Iron Age sacrificial victim]] due to the fact she had [[spoiler: modern dental work]].
* IdiotBall: Frequently taken by the scientists, doing things like confronting suspects on their own... and just as frequently taken by the cops of the week.
* InfantImmortality: Averted, big time. If a kid goes missing on this show, there's no guarantee they'll turn up alive and well, and they don't shy away from depicting autopsies of children, either. Not even the main characters are safe: [[spoiler: Leo's daughter Cassie is killed in a car accident alongside her mother in Season 9]]. One notable case where it's played straight is [[spoiler: Season 18's "Protection"]], where the missing child is found alive after two episodes of searching, even though half the characters had given her up for dead.

[[folder: Tropes K - P]]
* KarmaHoudini: Although most of his accomplices are arrested, [[spoiler: Strader in ''River's Edge'' gets off scot-free for drugging, raping and ordering the murders of at least three women and being complicit in the murder of a family and the attempted murder of at least three other people.]]
* KilledOffForReal: [[spoiler: Kerry]] and [[spoiler: Leo]]
* LeaveNoWitnesses: In "River's Edge", it turns out that this is the reason [[spoiler: the family were murdered. They were simply in the wrong place at the wrong time]]. Later, the killer also murders [[spoiler: DCI Guillam]] and tries to kill Jack and Nikki after they find evidence of the crimes.
* LongRunner: It's run for over twenty seasons since 1996.
* LongRunnerCastTurnover: None of the original main characters are left on the show by this point; however, Emilia Fox, who plays Nikki, has stuck around since Season 8 and has no plans on leaving any time soon; Tom Ward (Harry) and William Gaminara (Leo) also both starred on the show for almost a decade each. It's only in recent years that the cast has been overhauled and the current cast has remained in place for four seasons.
* MaybeMagicMaybeMundane: "Fear", in which a Catholic family believes their children have been possessed by demons. There's a rational explanation given for most of it, but certain elements leave the viewer to wonder.
* NiceJobBreakingItHero:
** Nikki in "Coup de Grace". Her testimony at a trial gets a convicted murderer acquitted...only for more people to turn up murdered in the same way. Played with as it turns out that [[spoiler: the man's lawyer was the real killer and he manipulated Nikki into helping him get his client acquitted so he could start killing again. The man Nikki helped acquit really was innocent; it wasn't her fault his lawyer was using him to get away with murder. She also helps identify and catch the real killer.]]
** Jack in "Fraternity".
* NotQuiteTheRightThing: Poor Louise Marsh, the social worker in "Protection", seems to suffer from this. As she herself points out, her attempts to protect innocent children from abusive or neglectful parents often unintentionally makes things much worse for everyone involved.
%%* ObstructiveBureaucrat: The UK Armed Forces, their superiors at the Home Office, other coppers.
* OneDrinkWillKillTheBaby: Referenced in "Safe" where the post-mortem of a murdered gang leader reveals him to have suffered from Foetal Alcohol Syndrome. His mother, initially aggressive and threatening to sue the police, is devastated when she realizes what her drinking led to.
* PoliceAreUseless: The forensics team ends up straying from their brief into other law enforcement roles. Typically the police get it wrong and impede the team until the last minute. When either the crim or the pathologist is cornered: here comes TheCavalry! Unlike ''Series/{{CSI}}'', these guys are really not cops period, but that doesn't stop anything.
** They actually do get called out on it sometimes, but again, this doesn't stop them from playing detective.
* PoliticallyIncorrectVillain: A few of these, notably in "Safe", where what gets Nikki to finally dump her obviously untrustworthy new boyfriend is hearing him launch into a racist tirade against the mother of two murder victims.
* PowerfulPeopleAreSubs: In "Change", the BodyOfTheWeek is a wealthy CEO whose secretary tries to cover up that he liked being tied up, gagged and whipped in the bedroom to avoid tarnishing his reputation.
* PrisonRape: Comes up on several occasions, but notably in "Redhill", where a senior prison officer has used his position to get away with this many times.
* PutOnABus: Happens to lots of recurring characters. Some major examples would be:
** [[spoiler: Harry Cunningham]], who is revealed to have left to accept a new job in New York at the beginning of [[spoiler: Season 16]].
** [[spoiler: Sam Ryan]], who returns to her home country to be with her [[spoiler: long lost son at the beginning of Season 8]].
** [[spoiler: Janet Mander]], who apparently moved away after [[spoiler: Leo breaks up with her in Season 15]].
** Victor Alexander, Nikki's father, who turned up in Season 9, then disappeared, before turning up again in Season 11, then going away again. It's implied he kept in contact with Nikki off-screen, before [[spoiler: dying]] off-screen in Season 15. He's one of the few characters in the series to have actually come back once being PutOnABus.
*** Considering how long its been since most of these characters have been seen or even mentioned (in [[spoiler: Sam's]] case, over ten years), it could be considered a LongBusTrip.

[[folder: Tropes R - T]]
* ReasonYouSuckSpeech: One of Nikki's ex boyfriends gives her a particularly harsh one in "After the Fall". He later apologizes, only for Nikki to agree with some of what he said, but points out that it's probably too late for her change now.
* {{Retirony}}: In "River's Edge", [[spoiler: DCI Malcolm Guillam]] is murdered a week before [[spoiler: he]] was due to retire.
* RidiculouslyCuteCritter: Lily the hamster in ''Protection''.
* SadisticChoice: In "Squaring the Circle", Council leader [[ManipulativeBitch Justine Greenwood]] gives one to DI Sarah Parks - charge a man she knows is innocent with [[spoiler: the murder of Greenwood's daughter]] and she'll give her the money she desperately needs for her daughter's cancer treatment, or stick to her principles and look for the real killer, potentially dooming her daughter. [[spoiler: Sarah chooses the former, but Jack later [[{{WhatTheHellHero}} calls her out on it]] and she finds the real killer. She is discredited and fired in the process, but she is able to keep the money due to having already moved it to another account - meaning Greenwood can't take it back without implicating herself - so there's still hope for her daughter]].
* SceneryCensor: Averted. While forensic drama, particularly US drama often has strategic bits of lab equipment censoring an autopsy scene, here corpses are completely naked during autopsy scenes, even underage kids.
* SerialKiller: Usually features at least one per season.
* ShipTease: Harry and Nikki. Dear God, Harry and Nikki.
** After Harry leaves, Nikki and Jack, though to a lesser extent.
* ShutUpKiss: While waiting for service in a pub, Dr Nikki Alexander explains at great length to Dr Harry Cunningham how she will end up old and alone. That is until Harry leans over and kisses her, then smiles and says, "Finally she shuts up."
* SiblingYinYang: Sam Ryan and her sister Wyn, who lived together in early seasons.
* SlidingScaleOfRealisticVersusFantastic: The show has many realistic details, but remains more glamorous and implausibly coincidental than strict realism would allow. Oddly, this has prompted some [[http://www.guardian.co.uk/culture/2011/jan/09/stuart-hamilton-silent-witness criticism]].
* StrangersOnATrainPlotMurder: The premise of "Supernova".
** And ultimately behind the killings in [[spoiler:"Covenant".]]
* SuspiciouslySimilarSubstitute: Jack Hodgson for Harry.
* StrawNihilist: The villains of "Lost"
* SuperIdentikit: One of Nikki's areas of expertise is reconstructing decayed faces (or in one case, a face that had been ''cut off'') using clay. Justified, in that she studied forensic anthropology; her reconstructions, whilst usually reasonably accurate, are not pin-point perfect either. Police sketches also come up from time to time.
* TallDarkAndHandsome (and [[TallDarkAndSnarky Snarky]]): Harry.
* TattooedCrook: Taken UpToEleven with El Buitre, a hitman for the local [[TheCartel cartel]] in "Awakening", who is quite literally covered from head to toe in tattoos associated with death, including a skull tattoo across his face. The tattoos are actually real as well, El Buitre being portrayed by Rick Genest, aka Zombie Boy.
* TearOffYourFace: In ''Death's Door'', the victim's face is gruesomely shown to have been cut off (save for the eyes) to disguise her identity.
* TeethClenchedTeamwork: Comes up from time to time amongst the pathologists and the cops they work with.
** Leo and Harry went through this, especially after Sam left. Fortunately, they got over it, with Nikki helping to balance them out.
** A downplayed example between Nikki, Clarissa, Jack and their new boss Thomas at the beginning of Season 17. They eventually get over it as well.
* TraumaCongaLine:
** Nikki. First her father abandoned her as a kid and never acknowledges the emotional pain he caused her. Then her mother died when she was a teenager. She finally gets a surrogate family in the form of her co-workers, only for [[spoiler: her best friend (and possible love interest) to run off to the US for a better job]] and her father figure [[spoiler:is blown up in front of her trying to save her life. And then she gets framed for murder.]]
** "Bloodlines" is one big, long TraumaCongaLine for Harry.
* TraumaticCSection: In "Undertone", it is revealed that a murdered woman was heavily pregnant when she died and the killer performed a crude C-section with a kitchen knife to remove the baby (she was already dead or at least unconscious at the time, but everyone is still horrified). Much of the story revolves around the team trying to find the missing baby as well as locate the killer.
* TroublingUnchildlikeBehaviour: Comes up occasionally, often overlapping with HarmfulToMinors.
** In the very first episode, "Buried Lies", a young boy [[spoiler: repeatedly stabs his abusive stepfather]].
** In "Protection", a sixteen year old boy threatens his social worker and his stepfather with a knife whilst trying to reunite his siblings. This is somewhat justified in the latter case, as he had been lead to believe his stepfather had abused his younger sister. He's later suspected of [[spoiler: murdering his stepfather and grandfather]]. In the same episode, it is revealed that the real killer of a dead paedophile found at the beginning of the episode was [[spoiler: the little girl he'd been abusing, who stabbed and inadvertently killed him trying to get away from him]].
** In "Falling Angels", a detective discovered he repressed his memories of [[spoiler: fatally stabbing his abusive father to protect his mother, who then took the blame to protect him. He is devastated and ridden with guilt when he realises this]].
** "Double Dare" features a young woman recently released from jail for participating in the brutal murder of a woman when she was a teenager, alongside her boyfriend; [[spoiler: it later turns out she herself didn't take part in the actual killing, but even so...]]
** Craig Cross from "Sniper's Nest", even before [[spoiler: TheReveal that he was the sniper's accomplice]].
** [[spoiler:Miranda, Hannah, and Kelly]] in '"Supernova", young schoolgirls who murder multiple people. One of their victims also counts as this trope: at 14 she was sexually active and a drug abuser.
** [[spoiler:Michael Maitland]] in "Covenant", a young teenager who kills at least two people and arranges his own father's murder basically just for fun.
* TrueCompanions: Leo, Nikki and Harry in the later series. Leo implies to Nikki and Harry that they are as important to him as his [[spoiler:(dead)]] wife and child.
** Jack and Clarissa, to the point where Jack's condition for coming to work at the Lyell Centre was that they hire her too.
** More recently, Nikki, Thomas, Clarissa and Jack (especially the latter), with her stating that the reason she never focused on having a family was because she already considered her team her family.
* TwoGuysAndAGirl: From Season 6 to Season 16, the main cast consisted of this ensemble, with Sam/Nikki as the the girl, and Leo and Harry as the two guys. Surprisingly for this trope, there is no LoveTriangle; Sam's relationship with Leo and Harry (the former of whom was HappilyMarried) have a strictly platonic relationship, and whilst Nikki and Harry have bucket-loads of ShipTease, Leo was a ParentalSubstitute for Nikki, not a LoveInterest.

[[folder: Tropes U - Y]]
* UnnaturallyBlueLighting: Used regularly, particularly in pathology scenes. Partially this is an exercise in fashion and style: many contemporary British dramas were also using the technique. In the pathology scenes, the lighting increases the cold, clinical and confronting atmosphere.
* UnresolvedSexualTension: Again between Harry and Nikki. Also between Harry and any female, and Nikki and anyone.
* WellDoneSonGuy: In "True Love Waits", Kate Warren is under intense pressure from her father (a very respected retired senior officer) to secure a murder conviction in order to save her own career and uphold the family name. This becomes her motivation for [[spoiler: tampering with evidence]].
* WhamEpisode: "Greater Love Part 2", the final episode of Series 16. The mystery's been solved, people are setting up to celebrate the completion of the well, the protagonists are preparing to head back home and Fawzia, Leo's new LoveInterest, is considering coming back with them, giving Leo another shot at happiness. Then [[spoiler:Leo]] spots [[spoiler:the brainwashed soldier]] lurking in the crowds and discovers he's [[spoiler: wearing an explosive vest, set to go off at any minute.]] Knowing there's no time to do anything else, he begins dragging him as far away as possible. And then, [[spoiler: the bomb goes off ''[[KilledOffForReal killing Leo]]'']]. And just in case you weren't certain [[spoiler:he was dead, the next shot is Nikki sitting alone in a plane, [[HeroicBSOD staring into space]], with a coffin in front of her]]. [[spoiler: Whilst the main characters had had several near-misses, they were usually saved in the nick of time and the other regularly killed off characters were guest characters. Not since the first series, when Kerry was killed in a freak accident, had a ''major'' [[NothingIsTheSameAnymore character been killed]]]].
* WillTheyOrWontThey: Nikki and Harry, almost from the moment Nikki joined the show. They kept it up right up until Series 16 [[note]]that's around eight years of UnresolvedSexualTension, in all[[/note]], which actually saw Harry ''moving in with her'' (though it was only temporary after [[ItMakesSenseInContext his flat got blown up]]). Sadly for Nikki/Harry shippers, they never do get together on-screen and seeing as [[spoiler: Harry moved to America]], it's extremely unlikely they ever will. Nikki and Jack seem to headed towards this trope now, as well.
* YouAreNotAlone: In "Awakening", Jack tells Nikki this over the phone [[spoiler: to comfort her whilst she’s BuriedAlive. Her response: “I’m in a wooden box under the earth, Jack. [[TearJerker I am quite alone]]"]].
* YouDidntAsk: In "Coup de Grace", a murder suspect who is living in his father's old house finds his father's gun stashed there, and agrees to give it to his lawyer to hand over to the police; but ends up taking Nikki and the lawyer hostage when Nikki finds the gun first and panics. Later, when the investigating DI asks the lawyer why he didn't tell the police about the gun ''first'', he just says that no one ever asked.