Mailman Crook: IPO!?
Mailman Crook: What's IPO?
Pearly Gates: Impersonating a police officer!
Mailman Crook: You mean to say we've been conned?
Pearly Gates: I mean to say you've been conned!
Crime is rampant on the streets. Drugs are being sold, people are dropping at the sound of two boards being slapped together, windows are shattering to make way for burglars... who knows what sort of craziness goes on every day? Then, police officers show up to either take back the loot or perform a vigilante killing, and it looks like the day is saved...
Not! Surprise, surprise; sometimes by way of a Traitor Shot, the police officers are revealed to be scofflaws themselves (or, at the very least, a bunch of people who have taken the law into their own hands). Naturally, this upsets the balance of law and order between criminals and the police; Hilarity Ensues (as does chaos every so often). At times, it's a single person acting alone; at others, it's an organized group; but in fact, impersonation of a police officer has taken place.
Related to False Flag Operation or Dressing as the Enemy. Compare Bavarian Fire Drill, a.k.a. getting people to do what you want by acting authoritative and letting them draw their own conclusions. Unrelated to No Badge? No Problem!, which is where someone affiliated with the authorities but who actually isn't one acts as though he were. Phony Veteran is the military equivalent.
Do Not Try This at Home intentionally attempting to impersonate a police officer is a serious crime in most jurisdictions. With a few exceptions (including Zombi 2, which had cameos from actual off-duty NYPD officers in full uniform), live-action films and television shows with police officers in them use uniforms that are deliberately incorrect to avoid any hint of this. Fancy dress police costumes are also deliberately different from genuine ones to reduce the chance of being mistaken for a genuine officer. In Real Life, police forces/departments exercise rigorous control over their uniforms losing, giving away or otherwise transferring any part of their uniform can lead to serious disciplinary measures being taken against officers and old and worn items are destroyed rather than risking the chance of them falling into the wrong hands. It's very usual for uniforms to be stored on police premises only and officers change into them on arrival for their shifts and at no time do they leave the building unless being worn on duty.
- Lupin III: This happens to be one of Lupin's favorite tactics, often by disguising himself as Inspector Zenigata; usually at Zenigata's expense.
- In The Castle of Cagliostro, Lupin infiltrates the titular castle by posing as Zenigata, claiming that the real one Gustav saw was an imposter. It works. Gustav falls for it and attacks Zenigata and his men, allowing Lupin to slip inside unnoticed.
- Lupin also pulls this twice in The Secret of Twilight Gemini:
- The first happens, near the beginning, where he disguises himself as one of Zenigata's men in an attempt to slip past the inspector (which Zenigata doesn't fall for).
- The other happens about halfway through the film, when he disguises himself as a police officer to infiltrate Morocco's police HQ to dig up information on Galoux. Which leads to a run-in with Fujiko and a night of Sex with the Ex.
- Lupin poses as Zenigata again, in the Lupin III (Red Jacket) episode Albatross: Wings of Death, where he uses the disguise to try to get Prof. Lumbach to tell him about his bomb manufacturing plant. Lumbach stalls by pretending to fall for it, to buy time for the real Zenigata to show up!
- Lupin poses as the Inspector again in the Red Jacket series finale Aloha Lupin, to track down a group of imposters who were impersonating him and his gang.
- In an early chapter of Psyren a pair of goons show up at Ageha Yoshina's school trying to get his Psyren card. They flash fake police badges, but luckily for Ageha one of his classmates is the son of the local police chief and can tell the difference.
- This is part of Team Taiyou's backstory in Yu-Gi-Oh! 5D's. Jinbei angrily left Taro and Yoshizo to do his own thing, and ended up carpooling with some rich kids that pissed off the local biker gang. A siren goes off while Jinbei is begging for forgiveness, and the bikers begin to bail when it seems like Security has arrived. It turns out to be Taro and Yoshizo using a fake police siren, and Hilarity Ensues when they get caught and are chased around until dawn.
- In A Certain Scientific Railgun, Mikoto Misaka impersonates a member of Judgement, to an actual member of Judgement, by wearing a Judgement-issue armband that one of her friends dropped. She somehow does not get in trouble for this.
- The Punisher: Frank Castle has been known to use fake ID to enter crime scenes and get firsthand information before the detectives arrive.
- Judge Dredd: "Jimp" is Mega-City One slang for Judge Impersonator. It's quite popular because of the immense power that the Judges have compared to most police.
- There's a gang who tried to impersonate Judges to carry out robberies on three separate occasions. The first group was spotted by a robot who warned the real Judges, the second group was killed by an Ax-Crazy stranger who happened to have a grudge against Judges, and the last group was recruited for back-up by Dredd himself to storm a building full of hostiles and were killed because they lacked training.
- Another criminal duo got a bunch of Judge uniforms to carry out a robbery as well, but their disguise was so bad (the crooks had bad posture, were horribly out of shape and even wore their eagles on the wrong shoulder) that Dredd spotted them immediately.
- One story in the Free Comic Book Day 2013 issue of 2000 AD features a gang of young men who impersonate Judges not for any gain but because being a Judge is awesome. Until one of them gets killed trying to stop a criminal on his own.
- Ralphy Bryce is introduced as a young Hero-Worshipper to Dredd and goes around dressed in a judge uniform, even confronting some criminals while doing so. They dismiss him as "a squirt with a squirtgun" and punch the boy out. As Ralph is an orphan Dredd has him inducted into the Academy to train as a judge, but Ralph breaks the rules and leaves the Academy to try and track some criminals. After being discharged, Ralph goes around arresting criminals dressed as a judge. Dredd arrests him for this and he spends the next two and a half decades hating Dredd and goes on a killing spree dressed in an imitation judge uniform to show Dredd that he's still capable of being a judge. Dredd ends up being forced to execute him in the end.
- One ex-Judge who was part of an extralegal killing squad within the high ranks of the Justice Department used his old uniform to carry out hits. He gets found out because he was using a non-standard weapon.
- In the story "Closet", members at a gay club dress up as Judges as a form of dom-sub roleplay. A raid by the Judges leads to their arrest for using the uniform for entertainment purposes.
- Button Man: At least one Button Man posed as an FBI officer during the killing game.
- After Robin was framed for murder he snuck into the police station to look at the evidence and after being spotted he walked out during the ensuing chaos dressed as a GCPD officer.
- The League of Extraordinary Gentlemen: Griffin didn't actually need to impersonate a peeler, but stole the uniform off of one because it was cold. (True to form, he killed the officer to acquire it...)
- Point of Succession, a Death Note Alternate Universe Fic, has Matt impersonate a cop under L's orders.
- The Adam-12 fic "Wannabe Police Officer" has someone kidnap and chain up Malloy while taking over his identity and job. Jim was gone and Pete riding solo, so he got away with it for a few hours.
- Marionettes: Gear Shift and Cover Story claim they are agents of the Equestria Bureau of Investigations, but Twilight Sparkle sees through it because their badges are fake. "Because my big brother is Captain of the Royal Guard, and on the EBI seal, Celestia's wings go behind it not in front of it."
- A military variant is used in Origin Story, where in order to rescue Louise from a secure military base, Captain America, Spider-Man, and The Wasp dress up in military uniforms and use forged IDs and orders to get in. (It turns out that Captain America's uniform is real.)
- In Scooby-Doo and the Alien Invaders, the villains hire two unnamed men to pose as Military Police officers and order them to guard a secret location in the desert, which they claim to be a restricted government facility (it later turns out to actually be a lost gold mine).
- Absolute Power: Two snipers, each unaware of the other, try to shoot Luther when he arrives at an outdoor café to meet his daughter. They both miss, and Luther escapes through the police cordon wearing the uniform of a police officer he had hidden beneath his coat.
- Across 110th Street (1972) opens with a mob gambling bank tallying their profits. There's a knock on the door and they see two policeman outside asking about an illegally-parked car. The banker tells a henchman to just pay them off with a few dollars, but when he opens the door the cops are quickly revealed to be criminals of their acquaintance who are Robbing the Mob Bank.
- The Art of War (2000). Wesley Snipes character is checking out a Triad hangout when the police raid it. He apparently evades them, but a black FBI agent starts moving in the same direction he did, gun at the ready. Later one of the perps is getting in the face of several officers when that same agent appears, slams the man's head into the table, then hauls him outside to the amusement of the officers. It turns out to be Wes wearing the FBI man's cap and raid jacket.
- In Black Rain, the yakuza villain's men plot to rescue him from the American cop protagonists as soon as they land in Osaka by pretending to be detectives carrying an arrest warrant for the villain, counting on the foreigners to not know Japanese and thus not notice that what they're brandishing is a housing contract. It works.
- Carlito's Way: After Dave Kleinfeld narrowly survives an assassination attempt as retaliation for his murders of Tony Tagliucci and his son Frank, he's hospitalized. When Carlito visits him in the hospital, he notices a suspicious behaving police officer outside in the hall, who he takes to be an assassin here to finish off Kleinfeld. He helps said assassin out by discreetly emptying the bullets from Kleinfeld's revolver. After Carlito leaves, the fake cop comes out of hiding and relieves the real cop who is guarding Kleinfeld's door. It turns out to be Tony T's other son Vinnie.
Vinnie: There's a delivery for you, Mr. Kleinfeld.Dave Kleinfeld: From who?Vinnie: [pulls out gun] From my father, and my brother!
- Dan Brown's Inferno. Vayentha, the Consortium agent stalking our protagonist, is disguised as a member of the Carabinieri. This makes Langdon reluctant to just call the Italian authorities for help, because he doesn't know she's not a real police officer.
- The Dark Knight Trilogy:
- As Ra's al Ghul claims in Batman Begins, Bruce Wayne is trying to defend "a city so corrupt [the League of Shadows] infiltrated every level of its infrastructure. Effortlessly." How effortlessly? The district attorney, Carl Finch, is assassinated by a League member who's actively working as a police officer. And in the climax, Ra's and his men enter the Narrows posing as a SWAT team.
- In The Dark Knight, this is part of The Joker's assassination plot against Mayor Garcia at Commissioner Loeb's funeral: they kidnap the honor guard that will be doing the 21 gun salute, and steal their uniforms. They fire off the first two volleys like they should, then before the third volley, all turn their guns on the Mayor. Gordon tackles the Mayor from the podium just as the Joker shoots. The entire column of assembled real cops immediately scatters, which the Joker and most of his men are able to use as cover to escape, although another honor guard member gets tagged in the leg and is taken away by Harvey Dent to be tortured.
- Dick Tracy. Several of Big Boy Caprice's henchmen dress up as police officers, "arrest" Lips Manlis and take him to a warehouse to be murdered.
- In the film version of Dragnet, stolen police cars and PAGAN cult members disguised as officers are used to keep the locals away from the site where the Virgin Connie Swayle is due to be sacrificed.
- El Camino: When Jesse breaks into Todd's apartment to search for a hidden stash of drug money, two men dressed in police uniforms also enter the place to search for "evidence". After a tense confrontation between Jesse and the two "cops", they put him under "arrest" and restrain him with wires they picked up from the floor; at which point Jesse realizes that they don't have handcuffs, and he calls them out for their ruse. It turns out that the fake police detectives are in fact petty criminals (both of whom were associates of Todd's gang), and they too only wanted to find and take the money for themselves. Jesse convinces them to not kill him and give him a third of the money stash, by pointing out that it'll look suspicious to the actual police if they murdered him and left him in the apartment.
- Face/Off: When Castor Troy comes out of his coma and finds out that his face has been grafted onto Sean Archer for a deep cover operation, Castor gets his revenge by intimidating the surgeon into giving him Archer's face in return. After burning down the lab to destroy all evidence, Castor takes over Archer's job and begins abusing it for his own gain.
- The title characters in Flame and Citron (2008) sometimes pose as police officers when carrying out their assassinations for La Résistance, thanks to their handler who's a police solicitor and can get them official badges. This backfires when they dress in police uniforms to assassinate a Gestapo chief only to be arrested on sight, as the Germans are rounding up and deporting all Danish police officers, replacing them with their own collaborationist units.
- The Godfather trilogy:
Vincent: How are ya, Joe! [shoots Zasa twice in the back] Zasa! [shoots him in the head]
- In The Godfather, Al Neri takes out his old police uniform to assassinate Barzini.
- The Godfather Part III. The mounted police officer working crowd control at an Italian-American pride parade is actually Vincent Mancini, but we don't realise until he rides up and Double Taps mob boss Joey Zasa.
- As seen in a flashback, Chow pulling one off sets the plot of The Hangover Part III in motion.
- The climatic shootout of Hard Boiled have several mobsters posing as Hong Kong policemen and taking part in herding the hostages into the lobby.
- The Hidden: The good alien parasite poses as an FBI officer so it can enlist the help of local human law enforcement to hunt down the evil alien parasite who killed his partner. Admittedly it's a Space Cop in its own right, but pretty far outside of its normal jurisdiction.
- When we first meet Harry in Home Alone, he poses as a cop, checking in on all the houses in the neighborhood, seeing who will be leaving for the holidays, allow him and Marv to rob them later. Unfortunately, Kevin realizes who he is when he sees Harry and Marv driving around in the neighborhood in their plumber's van, and more importantly notices Harry's gold tooth.
- Identity: It turns out that "Officer" Rhodes was a convict just like Robert Maine, and he assumed the identity of the real police officer who was transporting the two of them after murdering him during the ride.
- Inspector Gadget, meet your Evil Twin Robo-Gadget, who's not so much impersonating a police officer as he is downright smearing the police officer's good name by committing all sorts of crimes.
- Jingle All the Way has Howard Langston briefly impersonate a police officer (or rather, an undercover detective) in order to stay out of trouble when the police raid a counterfeit toy operation that he was trying to buy a Turbo Man action figure at.
- Let's Be Cops is this trope The Movie, as the two main characters Justin and Ryan wear realistic-looking police uniforms to a party and on the way home are repeatedly mistaken for real police officers and get all kinds of praise, respect and women. Ryan has so much fun pretending to be a cop that he purchases all of the gear online, buys a car he modifies to look as close to a real police cruiser as he can, and learns official police procedures and tactics from YouTube. Ultimately subverted by the ending when, after the hoax is over, Ryan joins the police force for real.
- There is a notable moment late in the picture when Justin finds himself soberly looking up the actual legal definition of the act (and associated penalties). Apparently, the improbable events of the movie help them get off light at the end, including "Ryan becomes an actual cop".
- Looker: In the climax, Dr. Roberts incapacitates two police officers who are working for the bad guys and dons the uniform of one of them so that he can infiltrate the Digital Matrix exposition.
- The main villain of the Maniac Cop slasher movie franchise is an undead former police officer who was framed for Police Brutality and still dresses in his old uniform while he carries out his Roaring Rampage of Revenge.
- Marvel Cinematic Universe:
- In Iron Man 3 Ellen Brandt tries to impersonate a Homeland Security agent to cover her abduction of Tony. It fails rather spectacularly when the local sheriff (rightly) states that flashing a badge and trying to brush it off are not sufficient to get him to back down.
- Captain America: The Winter Soldier. Nick Fury is targeted for a Conspicuously Public Assassination — his SUV is rammed on all sides by police cars, then a SWAT van pulls up discharging a team with assault rifles who open fire on him, then try to force their way into his bulletproof car with a hydraulic ram. The intent is two-fold — to get close to Fury (when he sees the 'police' staring at him, he assumes it's because he's a black man driving an expensive vehicle) and to delay anyone calling the police given the time they need to get past Fury's defenses (the SUV is both armoured and weaponised).
- In Miami Blues Junior Frenger impersonates Det. Hoke Moseley after stealing his gun, shield, and false teeth (long story), in order to carry out a one-man crime wave around Miami.
- In Midnight Run Walsh and Mardukas pretend to be FBI agents so they can "confiscate some counterfeit money".
- The Night Flier: At one point Dees poses as an FBI Agent to get the details about a grisly double murder from a local sheriff.
- Variation: In Pirates of the Caribbean: The Curse of the Black Pearl, a Noodle Incident in Jack Sparrow's list of charges has him impersonating an officer of the Royal Navy (who did double duty as colonial law enforcement in those days, especially where piracy was concerned). Another has him impersonating a clergyman of the Church of England (he smiles at the memory).
- Later, in the fourth movie of the series, he impersonates a judge.
- Psycho Cop has a similar premise, although the killer is mortal (or as close to it that your average slasher villain gets).
- Raw Deal opens with the confusing sight of Arnold Schwarzenegger in civvies driving a jeep, chasing a motorcycle cop. Turns out Arnie is The Sheriff and the cop actually a conman stopping speeders and taking 'fines' off them. Later on The Mafia disguise themselves as a bomb squad to steal a huge stash of confiscated drugs and cash from police headquarters.
- In Rehearsal for Murder, Alex hires actor Frank Heller to pose as a police officer to prevent the suspects from leaving.
- Resurrection (1999): The serial killer is revealed to have been posing as an FBI profiler who was "assisting" the cops with tracking himself down earlier in the film. This becomes apparent when the main character, a Chicago PD homicide detective, visits the local FBI headquarters and discovers that the actual agent by that name is African-American, not white.
- Runaway: The villain Charles Luther dresses as a policeman to enter the department and hack into their database for information on Ramsey. Strangely, everybody on the force is on the lookout for this maniac, but no one in the station recognizes his face.
- In Running Scared (1986), the drug dealer Julio Gonzalez has his men capture the police officers guarding a government building and put on their uniforms to masquerade as them. He then uses the building as the location to trade a woman he captured for the cocaine the protagonists seized.
- The Serpent and the Rainbow: A Heroic version appears when Celine has two men disguised as cops pretend to arrest him at he airport, narrowly saving him from actually being arrested by real Haitian secret policemen.
- In Seven (1979), two of Kimo's hitmen pose as police officers and guide the senator's car into an ambush, and then kill the senator's driver afterwards.
- McCarty in Silver Lode isn't a Marshal, and consequently his companions aren't deputies, either. They just use their fake credentials to be able to grab Ballard on the pretext of arresting him for murder without arousing too much suspicion. Unfortunately for them, Ballard calls bullshit and the townspeople have his back. At least at first they do...
- The hitman in The Star Chamber does this, unless he really is a police officer.
- In The Streetfighter's Last Revenge, shortly after being double-crossed by the Owada clan, Terry Sugury intercepts a group while disguised as a highway patrol officer. He directs them to pull over in a car crushing lot and then reveals himself. He then sends a lone assassin, Wolf, back to the Owada clan alive to tell the patriarch that he should fight Sugury for the money he had stolen.
- Terminator 2: Judgment Day: Clearly the favorite form for the T-1000 Terminator to take is that of a Los Angeles patrolman. Not surprisingly, an LAPD cop was the first person the T-1000 encountered upon arrival from its time-travel. That form also avails the T-1000 to plentiful information and resources, but it backfires when it actually finds John: being a Delinquent kid, John just runs from him, and this unknowingly saves his life.
- In Terminator: Dark Fate, REV-9 disguises itself as a US ICE Border Patrol officer while searching for Dani at the illegal immigrant processing centre.
- The Texas Chainsaw Massacre (2003): "Sherrif" Hoyt at first appears to be simply a Dirty Cop, but the prequel reveals that not only is he a leading member of the Cannibal Clan, he murdered the original Sheriff when he tried to take in Leatherface after his first murders and stole the lawman's uniform to lure in more victims.
- In Theatre of Blood, Lionheart and the Stage Manager pose as constables to lure Maxwell into the ambush at the squat.
- Things to Do in Denver When You're Dead had two main characters pose as police officers to stop their mark. Given that one of the criminals had a short fuse, it went From Bad to Worse very fast for everybody involved, putting into motion the main plot of the movie.
- In the Swedish film The Third Wave, a Professional Killer who is stalking his target through an anti-globalization riot kills a riot policeman and steals his gun, uniform and face-concealing helmet. This enables the hitman to get close to the protagonist and execute him with a shot to the head — unfortunately it turns out the gun he stole is loaded with plastic bullets.
- In Tiger House, one of the gang dresses as a police officer to accompany Mark's stepfather to the cash depot. This causes Mark's mother to mistake him for a real police officer when he returns to the house after the robbery.
- The killer in the 1984 Clint Eastwood movie Tightrope is first shown via his trainers as he stalks a woman. She's aware someone is following her, but runs into a uniformed police officer who escorts her home safely. The camera then tracks down to show the 'police officer' is wearing the killer's trainers. This plays into the theme of the movie which has a Not So Different vibe between the killer and the cop investigating him.
- The Tournament: When Father MacAvoy is in the alley attempting to throw up the tracker, a police car pulls up and a uniformed officer steps out. Father MacAvoy starts towards him before he pulls out a submachinegun as Lai Lai yells out that he's a player.
- Barricade from the Transformers Film Series takes this to the next level by making his alt mode a police car, complete with a Decepticon logo on the side badges and "To Punish and Enslave" as his motto.
- The Untouchables: Frank Nitti disguises himself as a police officer to assassinate the bookkeeper the Untouchables have persuaded to testify.
- What About Bob?: Bob pretends he's a police detective to get Dr. Marvin's number out of the telephone operators who earlier rejected his request, claiming that he's killed himself, with the cops investigating. He shows no psychological handups when doing this, perhaps oddly, though maybe role-playing helps with his neuroses.
- What a Carve Up!: Ispector Arkwright arrives at Blackshaw Towers, telling the surviving guests that Mr. Sloane had made it to the village and informed him of the murders. However, when Ernie and Syd later discover Sloane's body in the garden, they realise that Sloane never made it to the village and that Inspector Arkwright is really the murderer Gabriel.
- An early comedic example of this ploy in play is The Wrong Arm of the Law, where a gang of Australian crooks upsets the established rules of the cops and robbers game in London. Shortly after this gets taken too far when a couple of paranoid lower-level criminals unwittingly attack actual police officers, the criminal underworld decides to forge a temporary alliance with the police to capture the IPO mob.
- In Another Note, Rue Ryuuzaki is really the notorious Serial Killer and former Wammy's kid, Beyond Birthday. He poses as an "unprivate detective", as well as copying L's dress and mannerisms.
- In the John Connolly novel Every Dead Thing Louis gains the trust of a possible witness by flashing a gym membership and claiming it's a badge.
- In The Laundry Series Bob frequently impersonates law enforcement or other government officials when doing field work, facilitated by a Laundry-issue warrant card that compels the person to whom he shows it to believe him. Given that the Laundry's main job is occult counterintelligence and everything they do is classified under a section of the Official Secrets Act that is itself classified, he doesn't have much choice.
- Slight twist there, as a warrant card only works for its legitimate owner, actually identifies said owner, and can only be used to assert said owner's actual legal authority over somebody who is subject to said authority: it just does so in a very mind-screwy way that tends to leave people needing to rationalize what they saw.
- Ostap Bender tries to do this with the underground millionaire Koreiko in The Little Golden Calf. Ostap wants Koreiko to admit that a large sum of money was indeed stolen from him, to confirm that he's richer than he seems. However, it's a Paper-Thin Disguise consisting of only a police hat, and the hat has a coat of arms of the wrong city, to boot. Koreiko later points that out.
- Modesty Blaise novels:
- In A Taste for Death, two criminals steal a police car and the uniforms of the officers in it, using them to impersonate police and get the drop on Willie.
- In The Night of Morningstar, when one of the Watchmen is arrested after failing to subdue Modesty, another impersonates an investigator from Special Branch to gain access to the police lockup and kill him before he can tell what he knows.
- Star Wars Legends:
- In Iron Fist, the Wraiths are nearly captured in the first chapter by Imperial agents disguised as local security forces who have a confederate start a Bar Brawl with them. They use the tactic themselves later, as part of a complex infiltration of a military base: to whit, two Wraiths start a fight with some pilots, the rest show up dressed as stormtroopers to "arrest" them, and then they flag down a real military police patrol, saying their vehicle broke down.
- Invoked for Paranoia Fuel in Testament, by David Morrell. A journalist is being terrorized by a right-wing underground organization with sympathizers in all levels of society. His eight year-old daughter is taken out of school by a man posing as a police officer and sexually assaulted. A detective says they confirmed the location of every officer that day, and the attack was clearly meant to make him suspicious of the police and refuse their help. But what, the journalist replies, if a police officer lent his uniform to the attacker?
- The Three Investigators has a Classy Cat-Burglar have one of his men dress up as a police officer. When the cops show up and try to use that as a charge, he points out the the fake cop is in fact wearing a New York Police uniform (the series is set in California), and as such cannot be accused of impersonating the local police.
- This is a key facet of one of the cons that Mr. Wednesday says he once favoured in American Gods, while lamenting that its time, most assuredly, has passed. The con involves one artist purchasing jewelry or stones with a legitimate roll of banknotes, but on one of which the ink has been smudged. The jeweler calls to verify the veracity of the notes, and finds that they are real — but then a 'police officer' comes in, harangues and accosts the first artist, and walks off with partner, notes, and the merchandise that the first guy attempted to purchase. For evidence, of course.
- Jason And The Intragalactic Troubleshooters: In the climax of book 3, Jason dons the duck hat (a hat with a fake duck on it) he'd bought earlier in the book and bluffs the villains by claiming to be "Inspector Duckles of the Galactic Police, Bat and Duck Division", using his library card as a pretend badge and having knowledge of their previous (failed) plot to rob a certain location. General Batso falls for this imposture, allowing the heroes to escape.
- Terminal by Colin Forbes involves the sinister activities of a clinic in Switzerland apparently guarded by the Swiss army. When the protagonist gets a close look at the guards however, he realises they're members of a security company whose uniforms are deliberately similar to army uniforms, to make it appear the clinic has official sanction. It also helps that there is a high-ranking Swiss military officer secretly assisting the clinic.
- In the English version of 19-2, a fake Service Police Métropolitain officer was busted while trying to do a fake traffic stop in downtown Montreal. One of the arresting officers mentions that he's an example of scammers who the SPM have to arrest and let go because of a judge's order. Sadly, the fake cop heads to Station 19 and shoots up the place, killing several officers including JM. He dies of a possible self-inflicted gunshot wound to the head. During JM's funeral, a high-ranking SPM officer is upset that the fake officer was the man responsible for killing JM.
"Well how could ya [know that the fake cop was the shooter]? Goddamn judge cut him loose."
- In an episode of Adam-12 there's someone out there claiming to be a particular detective in the LAPD, flashing his badge around and insisting on bribes. They aren't sure until the end of the episode whether it's really that cop turned bad or someone impersonating him. It's someone impersonating him.
- Altered Carbon
- The so-called Ghostwalker is just a Mysterious Watcher until he does a Kill and Replace on a uniformed officer so he can infiltrate the Bay City headquarters and free a prisoner.
- Takeshi Kovacs discovers that the body he's been resleeved into used to belong to a Cowboy Cop called Elias Ryker. As he's Working the Same Case with Ryker's former partner Kristin Ortega, it's convenient to pretend to be Ryker as well. The only problem is that every criminal who had it in for Ryker is now gunning for Kovacs.
- The Americans: In the series premier Philip and Elizabeth are tasked with apprehending a Russian defector. After they catch him, Philip makes a point of loudly reciting his Miranda Rights for the benefit of any onlookers as the Russian screams "They're not police!"
- Angel: In one episode Angel manages to extract information from the officers at a crime scene by acting like a pissed-off plainclothes man - largely through scowling and demanding coffee.
- Are You Being Served?: In "The Hold-Up", Captain Peacock and Mr. Spooner do this as part of a gambit to rescue Miss Brahms from a brace of burglars.
- Banshee combines this with Dead Person Impersonation. Lucas Hood was the sheriff of a backswoods town in Oregon who decides to take the job offer of sheriff in Banshee, Pennsylvania. However, on his way into town he stops at a bar on the outskirts of Banshee and is killed by two robbers. The robbers are then killed by the protagonist, a master thief who just got out of prison and is in Banshee looking for his old girlfriend. The thief realizes that the only person in Banshee who actually knew what Hood looked like recently died of cancer, so he assumes Hood's identity and becomes the new sheriff. He has no police training but his brutal methods are quite effective against the local toughs so people just assume that he is a Cowboy Cop.
- In an episode of Barney Miller, a man claiming to be a detective from the 12th precinct is accosting men as they leave gay bars and demanding money or else he'll beat them.
- The Bill. The police are raiding a pornographer, who accuses the police of harassing him. Inspector Monroe points out that two raids in three years is hardly harassment. Turns out several 'fake' police officers had earlier confiscated his stock. Monroe's comment tips the pornographer off about what happened, and he goes after them.
- Blue Bloods
- In "Down the Rabbit Hole", serial killer Thomas Wilder kidnaps Nicky Reagan while dressing as a police officer. He's still in the uniform when Danny catches up to him.
- In "The Price of Justice", Jamie and Edie are on loan to the NYPD Movie and TV Unit for the filming of a Rizzoli & Isles-esque cop show. A former cop is a special consultant hired to handle the "research", but it seems he does not grasp the reality of police tactics (like having female cops in heels, a big no-no in a foot chase), with Jamie and Eddie being more on-par with tactics. The consultant is outraged and threatens to report them to "their commanders", which confuses Eddie because in the NYPD, the correct terminology is "commanding officer." After a few more arguments where the man yells he's the expert, Jamie and Eddie get a detective to do some digging, and find that this "consultant" has never worked for the NYPD, and his only law enforcement experience is as a mall security guard in New Jersey. The consultant is fired in the end, though not for the fraud, but for sexual harassment.
- The Boys (2019): Billy Butcher claims he's an FBI agent at first when recruiting Hughie into the Boys. He later admits otherwise.
- In Burn Notice the heroes do this with some regularity.
- In "Identity" Fiona and Sam impersonate Detectives Cagney and Lacey to get a couple wannabe scam artists to leave town so their boss won't kill them. (This doubles as an Actor Allusion to Sharon Gless, who plays Michael's mom on Burn Notice and played Cagney on Cagney & Lacey.)
- In "Hot Property" Michael combines this trope with a Bavarian Fire Drill when he breaks into the Miami-Dade Police Department to steal intel. When his intrusion is discovered, he breaks a second-floor window, borrows a police jacket, and then acts authoritative to play on a rookie's "obey superiors" gene and send the cops on a wild goose chase.
- Parodied in "Almost Famous" when Castle and Beckett respond to an "officer down" call. Except instead of a cop, they find a male stripper in a police costume who was killed on his way home from a gig.
- Used straight in "Knockout". When Professional Killer Hal Lockwood is arraigned for killing another inmate three patrol officers stride into the courtroom. Something about them rubs Beckett the wrong way, then she realizes their collar pins aren't made of NYPD-issue brass, just as they pull out flashbangs and break Lockwood out of the courthouse.
- In "Probable Cause" Serial Killer 3XK, dressed as a cop, visits Castle in the precinct's holding area to reveal that he's the one who framed the writer for the Murder of the Week. Castle later gets "someone who owed me a favor" to impersonate the officers that are supposed to transport him to Central Booking, wrecking 3XK's plan to have him shanked in lockup.
- Used on two episodes in the first season of C Hi Ps. In the first one, a man in a CHP uniform pulls over young women in an effort to have his way with them. It's repeatedly said that he bears a strong resemblance to Jon which causes problems for that character. In the second, the brother of an officer killed in the line of duty does this in a well-meant attempt to carry on in his brother's legacy. (This impersonator was kept out of the police academy only by his color-blindness; he then uses his late brother's old uniform and a replica motorcycle.) Near the end, Jon gives him a lecture about all that could go wrong (safety and legal ramifications) and demands that he turn himself in on the next day.
- In The Closer episode "Tapped Out" a police academy reject poses as a 'Detective Dick Tracy' and is one step ahead of the Major Crimes Division by posing as the various detectives and Assistant Chief Pope. When the Division finally arrests him, he wriggles out of the impersonation charges by handing over the evidence he collected over in exchange for immunity. He still gets arrested because the impersonation charges he beat don't cover using a fake warrant; which he did to gain access to the victim's apartment.
- CSI: NY: Shane Casey escapes from jail during a prison riot by getting a friend on the outside to smuggle him an NYPD uniform, which he uses for several episodes afterwards.
- Doctor Who: The Doctor's psychic paper, which (usually) appears to the viewer as whatever kind of ID will get him past them, has been used to pull off impersonations of police, as well as other authority figures.
- "Aliens of London"/"World War Three": After the Doctor and Rose are taken to 10 Downing Street, Rose's mother gets questioned by Commissioner Strickland, who as it turns out is actually Sip Fel-Fotch Passameer-Day Slitheen wearing a skinsuit.
- "Fear Her": While Rose is talking to a council worker who's dealing with cars that are breaking down on the stretch of Dame Kelly Holmes Close where kids are disappearing, the Doctor enters the scene having been caught snooping in Tom's family's yard trying to figure out what happened to Dale Hicks (who vanished there):
The Doctor: I'm, I'm a police officer! That's what I am. I've got a badge and a police car! You don't have to get I can, I can prove it! Just hold on! [reaches for his psychic paper]
Tom's dad: We've had plenty of coppers poking around here, and you don't look or sound like any of them.
The Doctor: [gestures to Rose] See, look. I've got a colleague! Lewis.
Tom's dad: Well, she looks less like a copper than you do.
The Doctor: Training. New recruit. It was either that or hairdressing, so, voila! [brandishes his psychic paper]
- "The Unicorn and the Wasp": Upon the discovery of Professor Peach's murder, the Doctor claims by psychic paper to be an inspector from Scotland Yard because he doesn't want anyone calling the real police, especially when he's just discovered evidence of alien involvement in the murder that's just happened. The paper also claims Donna is the "plucky young girl" who helps him out (since female cops were very rare in the 1920s), to her offense.
- "The Eleventh Hour": When the Doctor first meets Amy Pond as an adult, she pretends to be a policewoman in her kissogram outfit, our Celibate Hero failing to register the extreme brevity of her hemline. She later uses the costume to get into the closed-off top floor of the hospital after Prisoner Zero attacks.
- One episode of the '60s series had a pair of scam artists going about impersonating Federal Reserve bank inspectors. Gannon poses as a mark and asks the fake inspectors if they're carrying identification.
Con artist: We always carry it. (gets out fake credentials)
Joe Friday: (comes in from the next room with his badge out) So do we. You're under arrest.
- Another Frauds Division episode involved a scam artist claiming to be representing the LAPD's Widows and Orphans Fund. Donations supposedly meant you could just tear up any traffic tickets and ignore them. That one got Friday seriously pissed off because it meant people distrusting the department when Reality Ensued.
- Yet another episode had a Gideon Dengle impersonating an officer and doing the job despite not being one. He then switches jobs and is arrested while impersonating a firefighter.
- One episode of the '60s series had a pair of scam artists going about impersonating Federal Reserve bank inspectors. Gannon poses as a mark and asks the fake inspectors if they're carrying identification.
- Enemy Within: Tal sent two of his people to get Erika's daughter at the park. Video of her and knowing she was there in their custody gets Erika to give up the information he wants.
- Friends: Phoebe finds a cop's badge and pretends to be a cop. This works well until she tries it on the cop to whom it belongs.
- In The Hardy Boys/Nancy Drew Mysteries, in the episode "Mystery of the Hollywood Phantom", The Hardy Boys see Nancy Drew unsuccessfully trying to talk her way out of trouble at an airport, and go over to help. On the spur of the moment, Joe pretends to be undercover airport security, and the brothers "apprehend" Nancy:
Nancy: [to another traveler] I'm telling you there was another man here trying to get into your suitcase!
Frank: Excuse me, what seems to be the trouble here?
Traveler: [suspicious] Is she with you?
Joe: [flipping open his wallet and flashing an ID too quick to see] Airport police. Juvenile Division. I thought we told you to never work this airport, Trixie.
Frank: We'll take care of this, sir. I'm sorry there's been any inconvenience to you. [grabbing Nancy by the shoulder] Come with me, thank you very much...
Traveler: You're probably all in this together!
- An episode of Hawaii Five-O called "Welcome To Our Branch Office" had a crew of lookalikes that impersonated McGarrett and the rest of the team as an extortion scheme to get businesses to pay the fake Five-O "protection money".
Bowman: We took $50,000 from Hess, the wholesale baker! You guys rigged an explosion in his oven, right?! There was a hundred from the factory man, Travers! And a hundred from Rodman, the plastics guy! That was it! What does it add up to?! Now you tell me, what does that add up to?[Lights come on, and Bowman realizes he was talking to the real McGarrett]McGarrett: Extortion. Kidnapping. Conspiracy. It adds up to thirty years to life, that's what it adds up to.
- After a controversial police shooting where an innocent bystander is killed, the detectives get a lucky break when the Cop Killer uses a badge he stole from one of the dead police officers to 'arrest' a prostitute to get some free sex.
- A Serial Killer is apparently a Killer Cop when he dresses in uniform and enters a police station. It turns out the police station is an abandoned building due for demolition and the killer is a madman who thinks he's a cop.
- Alluded to a few times on It Takes a Thief (2005). Some of the homeowners who signed up for the show were either police officers or married to police officers. Matt always made a point of talking about what would have happened if a real burglar, instead of Jon, had walked off with police uniforms, badges, and firearms.
- Stupid crook Dewey Crowe decides to rob two toughs who stole a large amount of drugs from the Dixie Mafia. When the local clothing store does not have any ski masks in stock, he instead buys a suit and a cowboy hat. He then proceeds to impersonate US Marshal Raylan Givens and successfully pulls off the robbery. When the real US Marshal Raylan Givens finds out about it, he is quite pissed and tracks Dewey down. It does not help matters that the two toughs have also tracked Dewey down and when Raylan identifies himself, they open fire on him since they will not be fooled by the same trick twice.
- In season four, a Detroit hitman is tasked with killing Drew Thompson but no one knows what identity Drew is currently using. The hitman disguises himself as a sheriff's deputy and goes to the houses of men who could be Drew and shoots them dead. He is exposed when he tries to arrest Boyd Crowder and Raylan Givens is present. Raylan just spoke to the sheriff and the sheriff would have mentioned if he sent someone to arrest Boyd. Before Raylan can check in with the sheriff, the hitman panics, draws his gun and is shot dead by Raylan.
- Law & Order: SVU:
- There's an episode in which a teenager impersonated a uniformed police officer, arrested a suspect, and handed him over to Benson and Stabler. Once the ruse was discovered, it led to a big legal issue in the suspects's trial. This one wasn't intentionally committing a crime. He was just overenthusiastic about becoming a cop one day and didn't realize that impersonating an officer is a felony and would get him blacklisted from the force.
- Another episode had a couple PIs who carried NYPD badges to scare people off. After they had been found out they tried to pull the "undercover" bit on Captain Cragen and Fin.
PI: [flashes badge] Get lost, all right?
Fin: [holds up his badge] I got one of those too. Where's your ID Card?
PI: [to Fin] Hey, you know what? Gold shield [Detective] doesn't mean I answer to you, okay?
Cragen: [slaps his Captain's badge against the window] You answer to me.
- There are few if any law enforcement agencies that the protagonists of Leverage don't impersonate at some point or other, from local police to the FBI to Homeland Security. Hardison does most of the work setting up false identities and making or obtaining fake credentials for the team to flash around; in the season 3 episode "The Morning After Job" he makes up police identification for himself and Eliot which is so convincing they are able to successfully requisition a real police cruiser for their part of the con... and are then tapped to transport a prisoner and dragged into a domestic disturbance call because theirs is the closest car to the scene.
- In The Double Blind Job, the Client of the Episode is pursued by two such henchmen, claiming to be FBI agents (shes in our custody!). Hardison flat-out states that he isnt fooled by their fake-ass badges. Then he directs their attention to Elliot, whom was barreled into during the chase and thus ended up with hot coffee all over his white shirt. While Hardison rounds up their soon-to-be client, Elliot pummels her pursuers.
- In an episode of The Listener a gang of robbers use fake cop uniforms to gain access to secure locations like high end jewellery stores and rob the place. Their disguises are very good and they even make sure that their getaway car looks like an authentic police vehicle. Later in the episode they steal an ambulance and commit a robbery disguised as paramedics.
- Lois & Clark: Superman himself does this, when the super criminal organization Intergang threaten to kill people if he shows up. He dresses and acts like a beat supercop handily beating down thugs with a bunch of self-defense Hoist by His Own Petard methods.
- Major Crimes episode "Return to Sender" has Rusty's stalker pretend to be an undercover officer in order to find out the details of Rusty's police protection and lure him into an easy place to kill him. It helped that they did not reveal to him all the members of the undercover team.
- The Masters of Horror episode "Pick Me Up" features a serial killer called Wheeler who drives a truck around the woodlands to look for victims. If anyone asks Wheeler too many questions or questions his credibility, he just shows them a sheriff deputy's ID to convince them that he's actually an off-duty officer.
- In Mission: Impossible members of the IM Force often impersonated police officers...as well as soldiers, security personnel and other officials.
- In Mob City two mob hitmen infiltrate a police safe house dressed as LAPD patrol officers and murder a witness and a police detective. They had authentic uniforms and were posing as the regular shift change so it is clear that they were helped by Dirty Cops inside the department. As a result of this incident the mayor authorizes the formation of the LAPD's first Internal Affairs department.
- The Monk episode "Mr. Monk and the Billionaire Mugger" concerned a police officer seen running away after seeing Sidney Teal get shot. Turns out it was an actor in a cop costume that Teal had hired as part of a scheme with his killer Archie Modine designed to impress Modine's date.
- My Name Is Earl: Earl stole a cop's badge and used it to get free food and other stuff. Then someone stole it from him.
- Orphan Black has petty criminal Sarah witness the suicide of a woman who looks exactly like her - who ends up being a seemingly loaded police detective. Wanting the money for her daughter, Sarah impersonates her and attempts to ingratiate herself into her life - it works, for the most part, until the other cops catch on. Of course, since she and the woman were clones, it's not like Sarah had a particularly hard time of it.
- Seen repeatedly in Person of Interest.
- John Reese has repeatedly used the badge of Detective Stills, a Dirty Cop he killed in the first episode (this backfires on him when a Victim of the Week sees a Missing poster of the real Stills in a police station). He has also used the ID of Jennings, a wife-beating U.S. Marshal he deposited in a Mexican prison.
Criminal: Leon stole more than enough, in fact to make it worth us killing a cop so maybe we can make a deal. You leave Leon here with us and you can keep looking for your friend.
Reese: You know, the guy who owned this badge would probably have accepted that deal. But I'm not him.
Criminal: So who are you?
Reese: The guy who shot him and stole his badge. [violence ensues]
- Carl Elias' number two, Anthony "Scarface" Marconi, was first seen impersonating a patrol officer. He continues to enact this trope when needed, something he has in common with Reese.
- One episode had a pair of ex-FBI agents who had been forced out for corruption, but were now pretending to be FBI while acting as hitmen.
- In season 3 Root shows up as FBI Special Agent Augusta King. In her case, the credentials technically belong to her, or at least belong to a fake identity based around her. She got it with help from The Machine, which means it's as real as can be.
Fusco: [to Reese] She had a warrant — a real one. What was I supposed to say? "Sorry, boss, Agent King is actually a superpowered nutball. Just ask my buddy, the urban legend."
- In Season 4, Samaritan agent Martine regularly impersonates federal agents when hunting down our heroes.
Martine: FBI; drop your weapons or we'll shoot.
Fusco: I thought you were DEA?
Martine: What does it matter? We'll shoot either way.
- John Reese has repeatedly used the badge of Detective Stills, a Dirty Cop he killed in the first episode (this backfires on him when a Victim of the Week sees a Missing poster of the real Stills in a police station). He has also used the ID of Jennings, a wife-beating U.S. Marshal he deposited in a Mexican prison.
- The Punisher (2017): To lure Frank Castle out of hiding, some of Billy Russo's men disguise themselves as police officers to abduct David's family. They succeed in grabbing Sarah and Zach, but Leo manages to avoid detection.
- In the Rescue 911 episode "911 He's Not an Officer", a young man in a Mustang honks at a woman driving her car and flashes a badge in an attempt to get her to pull over. Suspicious of his behavior, she calls 911 on her car phone — a rarity in 1991, when the segment takes place — and tails him when he tries to flee. And yes, it turns out he was not a police officer, and was using a stolen badge.
- Scorpion: In "Rogue Element", Happy borrows Cabe's ID and uses it to gain access to a crime scene by posing as Homeland Security agent.
- Kramer exhibits this in Seinfeld in "The Statue"
Ray: Are you a cop?
Kramer: Yeah I'm a cop. I'm a good cop, I'm a damn good cop!!
- Seven Days: Two inner city hoods steal Frank's and Olga's NSA IDs, and are later seen at a bar demanding that the bartender give them a bottle of some expensive alcohol, but the bartender isn't buying it. "OK, if you're with the NSA, what does 'NSA' stand for?"
- In "Static", when investigating murders at the docks, Clark Kent claims to be an officer to the coroner, who believes him.
- In "Bulletproof", when investigating whether a Dirty Cop was the one who shot his friend John Jones, Clark goes undercover as an officer, complete with forged papers claiming he is "Joe Fordman". His assigned partner Dan Turpin eventually figures out he's a fake and tries to arrest him, but Clark and Green Arrow manage to convince him that they are the good guys and they arrest the corrupt cops.
- In Supernatural Sam and Dean regularly go undercover as FBI agents (as do several other hunters), with Bobby backstopping their aliases if someone wants to call their superior. One episode shows Bobby has a whole wall of phones labeled with each alias, though in the same episode the trope fails because it turns out the sheriff they're talking to knows Bobby. In another episode it's played for laughs when Bobby advises a Hunter to call the FBI as he's apparently stumbled across a non-supernatural crime. Moments later, he gets a call on his FBI phone.
Bobby: Willis, FBI. (beat) No, Garth, not me the FBI, the real FBI! How are you still alive?
- Threshold: Agents of the eponymous agency usually pretend to be working for a federal agency whose very existence isn't classified, most often the FBI or the Department of Agriculture. However, they have authorization to do this.
- In an episode of Time Trax Lambert's police badge is stolen and is later used for a Flashed-Badge Hijack by the guy who stole it.
- Tracker liked this. Mel and Cole once used old police badges to get info and another time, Cole was looking for a fugitive in London and played along with a guy who thought Cole was an inspector.
- Veronica Mars: In the third season, Keith Mars, who was the former Sheriff of Neptune, dons his old uniform to grill two women for information. It fails when one of their friends recognizes him as the previous Sheriff and berates the other two for their ignorance. Later, there's a hilarious bit when Keith drives past the incompetent current Sheriff and gives him a mocking nod.
- An early episode of White Collar first implies this when Neal requests an FBI jacket for his part of the investigation. Then subverted when Peter makes Neal promise not to wear it and impersonate an FBI agent. Neal assures Peter he wouldn't do that. Double subverted when we cut to Mozzie wearing the jacket.
- In The Adventure Zone: Balance, Taako tries to bluff his way past Sheriff Isaak by showing him a fake police badge he picked up at the Fantasy Costco. Needless to say, it doesn't work.
- In one Jasper Carrott routine, he describes being on his way to film an episode of The Detectives, in a police uniform and a false moustache, when he suddenly realised all the other cars on the road were being very cautious. Once he realised why, he started to wonder just how slow he could get before anyone dared overtake him. When someone did, he gave the guy (who looked pretty tough) a look ... and then his moustache came loose.
- Happens a few times in the Grand Theft Auto games; the most common variant being when a mission requires you to appropriate certain police vehicles to take advantage of the badge.
- In the Grand Theft Auto: Vice City mission "Cop Land", when Tommy and Lance disguise themselves as cops. Also, just Tommy in the mission "No Escape?" (Interestingly, both of these missions bear the names of movies starring Ray Liotta, Tommy's voice actor.)
- In the Grand Theft Auto V mission "I Fought the Law...", Franklin is tasked to taunt and sucker two rich kids into an impromptu drag race while Michael and Trevor disguise themselves as San Andreas Highway Patrol officers on police bikes in order to pull over and then steal the rare sports cars for their client.
- Saints Row: The Third has a radio advert of the Steelport Chief of Police explaining his methods of running the force and recalling all the good he's done for the city, then revealing that he's actually just a homeless man who bought a cop uniform at a costume shop to stay warm and was mistaken for a genuine officer by everyone. Enjoying the respect, he decided to clean up his act and start doing it for real. The ad in question is for the costume shop.
- In the Team Fortress 2 spin-off comics, Miss Pauling dons an ill-fitting police officer disguise to rescue/recruit the Soldier after he breaks into his former roommate Merasmus' house and kills his new roommate, Tom Jones. Oddly enough, Soldier immediately recognizes Pauling, but Merasmus goes along with her obvious attempt to frame him for the crime.
- Happens to the protagonists in Mafia II. After buying a shipment of heroin from the Triads, Vito, Joe and Henry are caught in apparent police sting. It's only when Joe notices the suspiciously expensive-looking shoes of the lead officer that Henry realizes that they are rival gangsters trying to rob them.
- In the remake of Resident Evil 2, Ada Wong's cover story was changed from "I'm looking for my missing boyfriend" to "I'm investigating Umbrella for the FBI".
- The Outer Worlds lets you use the holographic disguise to impersonate corporate security officers and Groundbreaker Mardets on several occasions.
- In The Order of the Stick, part of Nale's plan to frame Elan for his crimes involves Sabine shapeshifting into a member of the Cliffport Police Department.
- Inverted in Schlock Mercenary, where one arc features cops so incompetent the Tough's lawyer is considering suing them for impersonating a police force.
- In an episode of Archer, the terrorist that ISIS is escorting back to Canada tries to break free with the help of friends dressed as Mounties.
- One episode of Batman Beyond shows people from the criminal organization KOBRA dressing up as cops to get Batman to willingly hand over a boy they've been targeting, who knows what Batman looks like under his mask.
- A bizarre variation in one episode of South Park when the boys start out the episode playing make believe as Cops. They do such a "heroic" job saving a little girl's doll that the local Police Chief makes them honorary Junior Detectives... then sends them to go bust up a suspected meth lab as if they were real police officers.
- Dick Dastardly suddenly becomes a de facto cop in the Wacky Races episode "Whizzin' to Washington" when a motorcycle cop pulls him over for speeding. (Dick's alibi was that he was pursuing the Ant Hill Mob, who in this series appear to be fugitives.)
Policeman: You were doing ninety miles an hour!
Dastardly: So were you, officer, but I'll drop the charges.
- Inspector Gadget: The original RoboGadget, in "Doubled Agent," did this long before the 1999 movie. Also see Presto Change-O, who impersonated Gadget and Chief Quimby!
- This is Truth in Television, with the legal offense subdivided into verbally claiming you're a cop, using a fake badge or warrant card, using a fake or stolen uniform, and using a fake or stolen police vehicle. The laws regarding this vary by jurisdiction: in Michigan, for example, it's only considered a felony if you're impersonating an officer while committing a different crime.
- This also extends to Security Guards, and in fact it's not unusual for Security Guards to lose their jobs and serve jail time for say detaining a suspect, as a mall cop does not actually have any legal authority.
- In the Saint Valentine's Day Massacre of 1929, saw hitmen hired by Al Capone's gang dressed as police officers, captured members of the North Side gang and executed them.
- Tom Mabe did this by phone to troll a telemarketer, pretending to be a police officer investigating his own murder.
- When he wasn't pulling his Wounded Gazelle Gambit, this was Ted Bundy's other tactic at enticing his victims to come away with him—in particular, at least two would-be victims who got away stated that he approached them in this guise.
- The Hillside Stranglers did this too.
- Anders Brevik, perpetrator of the Norway Massacre. It's how he gained access to the island in the first place, pretending to be a cop so that he would be ferried to the island where the summer camp was being held, then gathering the teenagers together. . . and gunning them down.
- Anytime you see a real police department being featured in a movie or TV show, just note that the police cars featured generally are not real patrol units but special cars painted in the regular police department paint job, with some differences so as to make clear that they're not actual patrol units (typically in the form of having a fictitious district or precinct number assigned to them):
- The NYPD turns up a lot in fiction set in New York City, to the point that there is a dedicated NYPD Movie and Television Unit that exists just to assist in live-action works. The NYPD has regulations in place that are designed to avoid confusing real police cars and police officers with actors or movie cars. Namely, movie patrol cars are required to be assigned fictitious precinct numbers. The list of actual NYPD precincts goes from 1-123, but skips some numbers, due to various precincts changing their boundaries, closing or consolidating with others. The skipped numbers are used for fictional precincts. Common fictional precincts include the 12th precinct, the 54th precinct, the 15th precinct, the 65th precinct, and of course the 27th Precinct ("two-seven") from Law & Order. Movie NYPD units also tend to be shown with forward-facing blue lights on the dashboard, which you won't find on real NYPD units as New York state law prohibits facing-forward blue lights on police vehicles. Movie NYPD units do have the gumball roof lights of real NYPD units; however, the movie units only have spinning gumball lights while real units have begun to use digital lights.
- The Boston Police Department also sees a lot of action in the movie industry, due to the number of productions that take advantage of tax breaks by the state of Massachusetts. Fake BPD cruisers have been marked with fictional districts to avoid confusion with real BPD cruisers.
- Los Angeles Police cars that are used as props typically have "To Serve and Protect" in lieu of the actual "To Protect and to Serve" on the car doors. Also, many prop vehicles will have lightbars that are not used by actual LAPD vehicles.
- According to Brock Yates' book Cannonball! World's Greatest Outlaw Road Race, one driver tried this to get out of a ticket. It failed miserably. The police officers who pulled him over saw right through it and his team lost three hours before getting let off with a warning.
- A rather popular choice in shall we say adult content, most of the uniforms are either the standard fetish outfits or are near enough to the real thing, with actual police and what they wear...or take off, being fairly unknown compared to other, well, services that might be portrayed in such films.
- Verily this is one of the things that eBay watch out for. Say you place a police badge or police style jacket for sale. They will take it down along with a very polite email explaining in detail the hows and whys of what items cannot be listed.
- One of the more audacious ways Allied POWs attempted to escape prison camps was by impersonating Gestapo officers; as long as you could obtain/forge a convincing uniform, speak fluent German, and act like you owned the place, you had a decent chance of pulling it off, since literally everyone, both military and civilian, were absolutely terrified of the Secret Police and therefore reluctant to ask too many questions lest they end up being shipped off to a labor camp, Reassigned to Antarctica, or just executed on the spot. There's even a tale about an American airman who disguised himself as a Gestapo officer, and actually stopped on his way out of the camp to berate a camp guard over his sloppiness before simply walking out the gate and making his escape.
- Many Fan Conventions outright ban modern law enforcement and military costumes for this reason, even if the costume has some intentional liberties with the design.