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1-> ''"Mr. Marks, by mandate of the District of Columbia Precrime Division, I'm placing you under arrest for the future murder of Sarah Marks and Donald Dubin that was to take place today, April 22 at 0800 hours and four minutes."''
2-->-- '''Precrime Chief John Anderton''', [[JustInTime Wednesday, April 22, 2054, 8:05am EST]], ''Film/MinorityReport''
3
4A Sub-Trope to ThoughtCrime and {{Profiling}}.
5
6One of the implications of {{Seers}} (and TimeTravel) is that we can predict crimes, and so we can prevent the crimes from happening. This trope is about taking evidence from the future, either through time travel or a PolicePsychic, and preventing the criminal from doing something they haven't done yet.
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8Without knowing the future, crime can only be minimized by punishing people for crimes after the fact. Precrime Arrest is when a character who [[TimeTravelTenseTrouble is known to be going to have committed]] a crime is punished in advance, in order to prevent their supposed future actions. If the offender is caught early enough, they may suffer from BewilderingPunishment because they haven't even ''thought'' of committing the crime yet.
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10Attempts to arrest/execute Hitler are popular enough to form their own trope: HitlersTimeTravelExemptionAct. Examples of Time Travel being used for Hitler specifically belong there.
11
12Although in RealLife methods of justice exist that produce a similar result (such as preventative detention in Europe and Asia), a setting wherein world-wide acceptance of this trope as a law enforcement tool exists is a pretty heavy example of HollywoodLaw and ArtisticLicenseLaw. To make a long story short, many laws that exist today have (theoretically) a heavy emphasis on "innocent until proven guilty" and "punishment after the crime". If the possibility--even if ''incredibly'' small--exists to ScrewDestiny, then the usage of this Trope could probably be seen as unfair arrest or (in the most extreme examples when people do nothing but wait until the event happens and taking action JustInTime) entrapment. And this is without going into the mind-bending details of arguing how the TimeyWimeyBall is in effect, too...
13
14----
15!!Examples:
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17[[foldercontrol]]
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19[[folder:Anime & Manga]]
20* ''Anime/PsychoPass'' takes place in the [[TwentyMinutesIntoTheFuture year 2112]]. Japan is governed by the Sibyl System, which measures many psychological factors. One of the things determined by scanning people is the "Psycho Pass", or the mental stability of a citizen. The colour of a Psycho-Pass is then used to measure the "Crime Coefficient," the probability and severity of the crimes a person might commit.
21** Those who have a high enough "Psycho Pass" are sent to psychiatric therapy or completely euthanized by Dominators, a type of gun used by the police. People who have a high "Psycho Pass", but haven't committed any crimes, are called "latent criminals". They generally have two choices: Rehabilitation, or become an Enforcer for the police.
22** Not helping matters is when this trope is inverted; when the system finds an asymptomatic criminal, someone who commits (or can commit) a high-severity crime without being predicted by Sibyl, they [[spoiler:reward the criminal by [[WetwareCPU turning them into an immortal brain-in-a-jar that partially controls the Sybil System]]]].
23* ''Anime/DragonBallSuper'' plays with this. Beerus executes Zamasu partly for his various crimes, the bulk of which he has yet to commit, while avoiding the legal problems outlined above due to knowing with certainty that he is going to do it. And because it's not like the letter of the law matters to a God of Destruction. If anything, Zamasu trying to kill Gowasu would have been enough to convict him.
24* In ''Anime/HeatGuyJ'', this is the theoretical purpose of the Special Unit, and why they are allowed to use an android even though androids are illegal within the limits of the city-state. However, in practice, they don't end up making too many arrests ''before'' any sort of crime is committed.
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27[[folder:Audio Plays]]
28* ''AudioPlay/BigFinishDoctorWho'': "[[Recap/BigFinishDoctorWho174PrisonersOfFate Prisoners of Fate]]" has the Fifth Doctor arrive on a colony where all apparent crime is predicted by the Chronoscope, but the Doctor becomes suspicious when he not only witnesses a man being arrested for a crime he insists he would never have committed, but the Chronoscope then predicts the Doctor's companions Tegan and Turlough committing a murder when they were just about to leave the planet. As it turns out, [[spoiler:the "Chronoscope" is really the Doctor's first TARDIS, which has been discreetly manipulating the planet for its own ends]].
29[[/folder]]
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31[[folder:Comic Books]]
32* In ''ComicBook/{{Swordquest}}'', the BigBad Tyrannus orders the infants Torr and Tarra to be killed simply because his EvilSorcerer prophesied his death at the hands of blonde-haired twins.
33* ''ComicBook/CivilWarII'': Captain Marvel wants to use a new character's powers to stop crimes and attacks from happening. She faces opposition in the form of Iron Man and his allies who refuse to punish people before the crime. Things become a whole lot more muddied when Tony Stark presents evidence that the visions are not one hundred percent accurate to begin with- based more around the subject 'doing the math' to calculate the odds of certain things happening rather than definitively seeing what will happen- and factors like Ulysses (the seer) having some kind of prejudice can make them even more inaccurate but Carol Danvers absolutely refuses to hear it. [[spoiler:And then it turns out that one of the people Carol arrested because the visions saw her commit a terrorist act decides to become one when Carol lets her go in the arc's epilogue out of sheer hatred for Captain Marvel -- although so far [[WhatHappenedToTheMouse nothing has come from it]].]]
34* ''ComicBook/JudgeDredd'':
35** Judge Death and his fellow Dark Judges have a rather psychotic take on this: since all crimes are committed by living people, the only way to get rid of crime is by [[OmnicidalManiac killing everyone in existence.]] They believe that life itself is a crime punishable by death.
36** Justice Department runs a trial program where Psi-Division predicts crimes and the perp is sentenced before the crime occurs. Unfortunately, the one guy they do arrest for a murder yet to happen ends up committing the crime anyway as a direct result of his arrest. Dredd notes that there's a flaw in the idea somewhere.
37* The ''Series/{{Angel}}'' comic has an interesting case; in the first arc, Los Angeles is dragged into Hell; and at the end of the arc, the ResetButton is pushed, returning all Angelinos to Earth alive and well as if no time had passed. However, the following arc deals with a group of apparent ''real'' angels killing what seems to be random people. Angel tracks them down, and discovers the killings aren't random at all; the victims had been up to ''[[MoralEventHorizon seriously nasty shit]]'' while LA was in Hell, and even if those actions were undone, the angels don't really see any reason to forgive them. Angel, desperate to come up with a utilitarian argument against precrime execution, persuades them it's possible that these people might end up doing so much good in their subsequent efforts to atone to outweigh the evil they did in Hell. This was supposed to be explored further over the next few arcs -- A repeated theme of the TV series is that attempting to "balance the scales" is doomed to failure because future good deeds can never really make up for evil acts, so one must do good in ''spite'' of them, not for some vague "redemption"; meaning that there are a ''lot'' of people in LA who have to accept their capacity for evil and decide what to do next -- but as soon as a new writer took over, the "angels" were retconned as having been evil demons from the beginning anyway, rendering the whole arc moot.
38* An issue of ''ComicBook/SavageDragon'' deconstructs this when an alien (that had landed on Earth some years before and was raised by some kind farmers) starts attacking people seemingly at random and kill them. The characters theorize that the alien has a capacity to see the future and the alien's "father" believes that the people who were killed would have become violent criminals in the time to come, and thus the alien was taking them out pre-emptively to avoid mass murders. The deconstruction is that, as Dragon points out, there is no real evidence of this being true (the alien is pretty inscrutable, for one)... and the fact that people have died before they would ever commit any kind of crime means that there never will be. Which means that the alien is (in the eyes of the law that Dragon has sworn to enforce) nothing more than a homicidal maniac that needs be stopped ''now''.
39* In the Silver Age, the ComicBook/LegionOfSuperHeroes once incarcerated ComicBook/{{Superboy}} in a kryptonite prison, after they had witnessed him committing several acts of wanton destruction through a "futurescope" and concluded that he would become a supervillain in the future. [[spoiler:In the end, it turned out that SuperDickery was in full effect as he was actually destroying an extremely dangerous weapon and things connected to it (which the Legion didn't know about, because everything had been covered up by the government).]]
40* ''Franchise/BillAndTed's Most Triumphant Return'' deconstructs the concept by showing that Charles [=DeNomolos=], the BigBad of ''Film/BillAndTedsBogusJourney'', spent his entire life being treated like crap because everyone already knows that his future self will try to kill Bill and Ted and destroy the utopian future they created. [[SelfFulfillingProphecy Naturally, this just makes him want to kill Bill and Ted and destroy the utopian future they created]]. [[NiceJobBreakingItHero Totally Bogus Job Breaking It, Future Dudes!]] Bill and Ted try to avert this by befriending "Chuck", but he turns out to be a JerkWithTheHeartOfAJerk either way and creates a BadFuture by [[PlagiarismInFiction stealing credit for Wyld Stallyns' music]].
41* Subverted in the Creator/ImageComics book ''Small Gods'': Even if you have infallible prediction, of ''course'' you can't arrest someone for something they haven't done. What you ''can'' do is lie in wait and arrest them for ''attempt''.
42[[/folder]]
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44[[folder:Fan Works]]
45* In the ''VideoGame/FinalFantasyVII'' PeggySue fic ''Fanfic/TheFifthAct'', an accident with a mastered Time Materia throws Cloud approximately ten years into the past. His primary objective becomes to kill Sephiroth before he can go insane, raze Nibelheim to the ground, and become an OmnicidalManiac bent on destroying the world.
46* Ultimately defied in ''Fanfic/DidIMakeTheMostOfLovingYou''; after various characters travel back from the end of the series to before the Fall of the Colonies, Bill Adama in particular reflects on how he's able to move on from Felix Gaeta's role in the future mutiny to treat the younger Gaeta like the man he was rather than the man he became, as well as the time travellers as a whole forgiving Boomer for siding with Cavil during the Cylon Civil War.
47* ''Fanfic/LightningOnlyStrikesOnce'' sees [[Series/The100 Clarke and Lexa]] sent back to the beginning of the series from the middle of the third season, which results in Lexa [[spoiler:killing Charles Pike]] to stop him repeating his actions in the original timeline. However, she only takes this action after confirming that [[spoiler:Pike]] has serious prejudices that he is not willing to overcome, and most of the time agrees with Clarke's own preference to stop future crimes by giving others a chance to get over their issues, such as arranging for Charlotte (who killed Wells in the original timeline) to be adopted by a Grounder family, or preventing Finn and Bellamy becoming soldiers so that they never have the chance to kill anyone.
48* In ''Series/TheFlash2014'', Nora was already operating in a questionable moral area in her time in the past due to her alliance with the Reverse-Flash, but in the fic "[[https://www.fanfiction.net/s/13266807/1/Ice-cold-deception Ice cold deception]]" she attempts to kill a meta because of what he'll do a few years in the future that tore her family apart (drive Barry and Caitlin to have an affair and conceive a daughter whom Iris would try to kill out of jealousy), only being stopped because Ralph was suspicious and followed her down to the cell before she could kill the man in question.
49* In ''Fanfic/ZToA'', this essentially applies; as well as all time-displaced characters preparing to face Thanos, Peter, Tony and Wanda use their advance knowledge to get evidence of Adrian Toomes’ crimes and convince him to turn himself in before the Staten Island Ferry incident. However, Peter approaches Quentin Beck on his own to just suggest that Beck focus on the good his work can do so he won’t be driven to villainy like before, rather than arrest him for his future vendetta.
50* Invoked in spirit in ''[[Fanfic/LostInCamelot The Lost Kingdom]]'' when a time-displaced Bo expresses discomfort at the notion of spending time with the young Evony given her future as the Morrigan, until Merlin and Morgana compare it to how she encouraged them to give Mordred a chance despite his supposed destiny to kill Arthur.
51* In ''Fanfic/TheCuttingEdge'', Laurel initially uses this to deal with Malcolm, as she uses her knowledge from the future to steal his plans for the Undertaking and pass them on to the League. [[spoiler:With Malcolm dealt with]], Laurel turns her attention to other villains Oliver and the team dealt with earlier on, such as Garfield Lynns, aiming to arrest, kill or redeem them as appropriate.
52* Discussed in principle in ''Fanfic/ShadowsOfTheFuture'' once a time-displaced Obi-Wan shares his full knowledge of the future with the Jedi Council after Palpatine has been exposed as the Sith Lord and captured. One apparently recent appointee to the Council protests that they can't train young Anakin as a Jedi because of the risk of him "becoming that monster all over again" after seeing Obi-Wan's memories of Darth Vader, although another points out that it would be unfair to judge Anakin on anything beyond what they saw in his interview, and Obi-Wan affirms that he already feels that this Anakin is better-adjusted than the Anakin of his original timeline.
53* Brought up in the ''Franchise/StarWars'' fic ''Fanfic/PadawansReturn'' when Ahsoka Tano finds herself sent back from the time of the Empire to the time of ''Film/ThePhantomMenace''. While she immediately recognises that she can't go after Palpatine as she has no evidence of his existing crimes, she finds herself frustrated that she knows what Dooku will do in the future but has no legitimate reason to go after him in the present when he's still a Jedi who is merely curious about the Dark Side but hasn't actually turned yet. Mace Windu sums up the problem in particular:
54-->"Thinking about the Dark Side is not a crime. If it was, we would have to immediately arrest several hundred of the Order’s archivists. Along with every Padawan who’s ever wondered if there was an easier, stronger way."
55* This backfires horribly in the backstory of the ''VideoGame/FireEmblemThreeHouses'' PeggySue fic ''[[https://archiveofourown.org/works/27890962 A Matched Pair]]''. Byleth has gone through the cycle of war so many times that she's willing to do ''anything'' to end the conflict with as little bloodshed as possible. In one timeline, she decides to cut the problem off at its root and kill [[spoiler:Edelgard]] the moment they leave Remire Village. From Byleth's perspective, she stopped the growth of a dangerous terrorist, but in everyone else's eyes, she just committed an unprovoked assassination, so when the Knights of Seiros arrive on the scene, they have Byleth arrested and turned over to Rhea, who promptly executes her.
56[[/folder]]
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58[[folder:Films -- Live-Action]]
59* In ''Film/MinorityReport'', the TropeNamer, three psychics are used by the state in order to apprehend and subdue people before they commit murder, keeping said latent criminals into a vegetative state. There is talk of expanding it into lesser crimes, as well, although the AsYouKnow conversation at the beginning explains that only murder is strong enough to trigger a psychic vision[[note]]This is proven false -- while murder is indeed the strongest signal, a precog can pick up on weaker visions at close range[[/note]]. During the "Precrime experiment", the captured criminals are detained in a comatose state with electronic files on their future crime. [[spoiler:When the movie ends with the protagonist proving that people don't have to commit the crime they are predicted to commit, the criminals are released because he proved there was enough reasonable doubt to overturn their convictions.]]
60* In ''Film/CaptainAmericaTheWinterSoldier'', S.H.I.E.L.D.'s Project: Insight is based around having three all-new Helicarriers designed to police the world, taking out potential threats before they do any actual threatening. [[spoiler:In truth, the project is under the control of HYDRA, and the Insight Helicarriers are driven by an algorithm designed by Arnim Zola to calculate any and all potential threats to HYDRA's World Domination, and ''terminate them all''.]]
61-->'''Col. Nick Fury:''' We're gonna neutralize a lot of threats before they even happen.\
62'''Cpt. America:''' I thought the punishment usually came ''after'' the crime.
63* In ''Film/PrinceOfPersiaTheSandsOfTime'', by the end, Dastan is propelled back to when he first caught the Dagger of Time. Already knowing his EvilUncle's plot, he tries to prevent it from happening. And is successful.
64* ''Film/Terminator2JudgmentDay''. Sarah Connor learns from the Terminator (who {{time travel}}ed back in time to her present day) that the person most directly responsible for the creation of Skynet is a Cyberdyne Systems engineer named Miles Dyson. She tries to assassinate Dyson to prevent Skynet from ever existing. Notably she can't bring herself to finish him off, instead collapsing into tears when she realizes she's about to kill a husband and father who hasn't actually done anything wrong.
65* The 1996 BMovie ''Past Perfect'' involved a justice program from TwentyMinutesIntoTheFuture that sentenced criminals and then sent hunter teams back in time to kill them just when they were starting their careers. While most of them are irredeemable jackasses, one of them (who was the gang's rookie and had not yet crossed the MoralEventHorizon) ends up declaring that he wishes to repent and his criminal record completely disappears because of the ButterflyOfDoom--still, this is not enough for the team's psychotic leader and he continues trying to kill the kid. [[spoiler:The film's epilogue shows that the cop that was the protagonist, now a judge, started the program in the future... but the events of the film had him change it to send people back who could teach criminals how to take a better path before they became irredeemable.]]
66* ''Film/JudgeDredd'': Judge Rico, Dredd's clone brother, was dishonorably disgraced and sentenced to the Aspen penal colony when he started executing citizens on the basis that they might possibly commit a crime in the future.
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69[[folder:Literature]]
70* Creator/IsaacAsimov's ''Literature/AllTheTroublesOfTheWorld'': Multivac's precrime functions alert the police to crimes before they happen. They then intervene by warning and detain only in rare circumstances. The ability has been expanded several times over, and the next stage is anticipating outbreaks of illness. But the plot kicks off when the arrest of an accused criminal increases the crime's probability of execution. The police are scrambling to figure out how to stop a crime worse than murder. [[spoiler:The twist is quite the whammer: the whole story occurs because Multivac has manipulated things so someone would be driven to try to wreck the machine, with its direct (secret) help. That particular person is stopped JustInTime, but the last line of the story is Multivac telling its creator: "[[WhamLine I want]] [[DrivenToSuicide to die]]".]]
71* ''Literature/ConstanceVerityDestroysTheUniverse'': The Invisible Scythe are an assassination agency that employs seers and other psychics to locate people who will eventually endanger the world and then sends someone to kill them. Naturally, they send a sniper to kill Connie, only for Duke Warlock to incapacitate him.
72* Lawyer Francis Malgaz from ''Literature/{{Gog}}'' hates Roman Law and believes crimes to be irreparable. He thinks that, instead of an expensive court system, there should be councils of psychologists and moralists who should punish those who ''might'' commit a crime and that those who already did should get massive fines. The protagonist likes this idea.
73* ''Literature/TheMinorityReport'' by Creator/PhilipKDick is the TropeCodifier, featuring "Precrime" as the name of a criminal justice agency, whose task is to identify and eliminate persons who will commit crimes in the future. The film ''Film/MinorityReport'' is based on this story.
74* ''Literature/RedDwarf'': In ''Last Human'', the crew encounter a GELF civilisation in an alternate universe that have arrested Lister's alternate self, the last survivor of that version of the crew, and Kryten is able to meet with the Regulator of the Forum of Justice on Arranguu 12 to ask exactly what the other Lister's crimes were. According to the Regulator, the mystics had foreseen that Lister was going to be responsible for the destruction of an asteroid, a Starhopper, and various other deaths, including the Regulator. Kryten immediately dismisses this system of justice as just an excuse to get rid of people the government don't like, [[spoiler:which turns out to be true, although they're actually doing it as part of a wider plan to create a telepathic gestalt to help terraform a planet]].
75* In ''Literature/ThroughTheLookingGlass'', the White Queen tells Alice that the King's Messenger (the Hatter, or 'Hatta', by the illustrations) is in prison for a crime he has not yet committed, or been tried for. (This is Looking-Glass Land, which is in some ways time-reversed.)
76[[/folder]]
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78[[folder:Live-Action TV]]
79* Played with on ''Series/{{CSINY}}'', of all places. In "Time's Up," a dying naked man claiming to be from the future rushes into the precinct and turns himself in for a murder he says will happen the following morning. Turns out, he's a genius who is so good at predictions (based on complicated math he does) that he knows an invention of his will malfunction and kill a certain person at a certain time and it's too late for him to prevent it. He dies right there. The next day, the event happens just as he said it would.
80* ''Series/DoctorWho'': The TV episode "[[Recap/DoctorWhoS32E8LetsKillHitler Let's Kill Hitler]]" features the obvious HitlersTimeTravelExemptionAct, from Melody Pond ''and'' from new character/crew Justice Department Vehicle #6018. The Justice vehicle is sent to ''painfully'' kill time's greatest criminals just before their death (and ''after'' their crimes). They realize they've arrived too soon in Hitler's personal timeline, and find a bigger fish: The woman who killed the Doctor. Except that she hadn't done that yet, either.
81* One episode of ''Series/HerculesTheLegendaryJourneys'' had Iolaus given a chance by [[TheDevil Dahak]] to save the life of a man who was hanging precariously from a rope bridge. However, Dahak also showed Iolaus that if the man survived, he would soon go on to rob and kill an innocent family. Iolaus chose not to save him and let the guy fall to his death. Dahak then gleefully pointed out that since the guy had not actually committed a crime ''yet'', Iolaus technically murdered an innocent man, conveniently ignoring the difference between actually killing someone and [[MurderByInaction not saving him from something else]].
82* ''Series/MinorityReport2015'': It has been eleven years since the end of [[Film/MinorityReport the Pre-Crime experiment,]] where people were arrested because the precogs saw them commit murder in the future. Now, Peter van Eyck wants to develop a new system of crime arrest based on computers and data analysis rather than "genetic freaks" in order to accomplish the same thing. The precog Dash joins with Detective Lara to prevent the murders Dash predicts.
83* ''Series/TheOuterLimits1995'': In "[[Recap/TheOuterLimits1995S2E1AStitchInTime A Stitch in Time]]", a professor who was raped as a teenager invents a time machine, using it to go back in time and [[SerialKillerKiller kill serial killers]] before they could claim any victims. She even limits herself to killers who have not only been convicted but ''executed'' for their murders, but since all her victims hadn't killed anyone ''yet'', law enforcement sees them as completely innocent victims of ''another'' serial killer with a career spanning ''forty years.'' [[spoiler:She eventually undoes her own motivation to do this by rescuing her teenage self, but still invents the time machine because she clearly remembers her future self stepping through a time portal. So as one of her victims went on to kill the partner of an FBI agent -- a murder originally undone though time travel, then re-done by the rescue -- the agent goes back to save her partner by killing the killer. It's implied that the agent will go on a similar time-travelling killing spree to the one she spent the episode investigating]].
84-->''"Our yesterdays are like a string of pearls -- unbroken -- unchanging. But if we could change our past, would that also change who we are?"''
85* ''Series/PersonOfInterest'' centers around preventing premeditated violent crimes before they happen through the predictions of a sentient supercomputer. Since the predictions are generally made some time between the end of the planning phase and the beginning of the execution phase of the future crime, there's generally enough evidence to turn them over to the police for attempted murder. The problem arises because the existence of the Machine is both illegal and highly-classified -- the US government uses it to predict terrorist attacks but ignores 'ordinary' crime.
86* The final season of ''Series/{{Elementary}}'' features a similar example to the Machine in ''Person of Interest'', but presented in a more negative manner; [[spoiler:Odin Reichenbach is a tech mogul whose public media platforms have given him access to a range of online material that he believes can be used to anticipate future crimes. However, he is soon shown to be far too willing to take action based on that evidence while ignoring such variables as the human need to vent; as an example, Sherlock notes that he killed a school bus driver who was discussing her thoughts of killing her passengers, but a look at this woman’s past online history showed that she made similar rants in the past and never followed through with her ‘threats’. [[BaitAndSwitch In the end]], it's pretty clear that Reichenbach just gets off on homicide and ''wants'' [[MurderIsTheBestSolution murder to be the only solution]], even ignoring Sherlock pointing out that hiring people to approach someone predicted by the software to do crime and observe and call the police or offer the potential criminal some help would be better]].
87* ''Series/ThePlayer'' centers around the people who created the system deliberately abusing the hell out of it; back in TheGildedAge, the world's first millionaires were looking for a game of chance so dangerous and high-stakes none of their lessers could ever even dream of playing it - they chose the nascent phenomenon of organized crime. UsefulNotes/ThomasEdison then used [[BeethovenWasAnAlienSpy the lost journals]] of [[Creator/LordByron Ada Lovelace and Charles Babbage]] to develop a system to calculate the odds of crimes - and ended up with one capable of ''predicting all of them hours or days in advance.'' The Gamblers used it to place bets on which criminals would get away, but quickly discovered just about all of them did. So they started funding a VigilanteMan dubbed "The Player" and betting on whether or not he would succeed or fail in stopping criminals... or just be killed by them. They go through them quickly.
88* ''Series/PowerRangersNinjaStorm'': In a three-part episode, Cam goes to the past to seek a power that'll make him the SixthRanger. Upon finding out his soon-to-be-exiled EvilUncle is [[BigBad Lothor's]] past self, he tries to persuade the other ninjas to kill him instead. [[AvertedTrope Unfortunately, they refuse]] to deliver punishment for future actions.
89* ''Series/SevenDays1998'' occasionally had Frank preventing a crime as the episode's plot. Every episode, Frank is sent back in time seven days to prevent whatever disaster has happened. Sometimes he's able to do it by preventing the perpetrator from attempting the crime. Most episodes, however, this trope is subverted, and Frank has to stop the crime/disaster ''as it happens'' instead of preventing it from being attempted.
90* During episode "Obsession" of ''Series/{{Sliders}}'', the main characters travel to a world where ten percent of the population have PsychicPowers. Amoung the various powers, is precognition.
91** A bit of research into the history of this world reveals that psychics became popular when one warned UsefulNotes/AbrahamLincoln about his impending assassination, allowing Booth to be captured before the attempt.
92** The Police Oracle identifies Arturo and Rembrandt as people who ''will'' kill Wade Wells, so the police make a Preventative Arrest. A BewilderingPunishment to all four at first. Basically, they're taken to the station, booked, and then released. If someone were to actually ''commit'' the crime, the police would have to chase them down, but otherwise the two are free to do whatever they want. [[spoiler: This is all a BatmanGambit by the old Prime Oracle to make sure his successor is a compassionate man in addition to already being a powerful one.]]
93* ''Series/StarTrekVoyager'' had an episode named "[[Recap/StarTrekVoyagerS5E23Relativity Relativity]]", where the 29th century timeship ''Relativity'' is attempting to stop a time-paradox sabotage attempt on the 24th century spaceship ''Voyager''. After the culprit responsible for the mess is found, ''two'' earlier versions of the culprit are arrested. The Captain assures Captain Janeway that the three would be "integrated" into one person before his trial.
94* Discussed but eventually averted on ''Series/CrimeTraveller'': because of the way the rules of time travel work on the series, it is impossible to stop a crime before it happens (when it's tried, "YouAlreadyChangedThePast" instead ensues), so all that can be done is witness the event and circumstances before and immediately after and obtain clues that were not immediately apparent in the "present".
95* ''Series/MoonKnight2022'': In Egyptian mythology, Ammit was a beast who devoured the souls of the dead who Anubis judged as unworthy. Sometime between now and then, she decided this was slow and short-sighted; evil had already been ''done'', punishing the guilty wasn't going to change that. Instead, she decided to start judging the living, not only of anything they have already done but what they will do in the future. Khonshu, the KnightTemplar Moon God who [[PayEvilUntoEvil brutally destroys any evil he finds]], considers her a monster without a conscience.
96* ''Series/ClassOf09'': By 2034, it appears that the FBI is arresting people for no clear crime as a result of what their AI has predicted they'll do. Further, state police can take over people's cars by remote control, forcing them into stopping and getting checked out. [[spoiler:Once the AI system gets overthrown by the heroes, all cases that are based on this become immediately nullified.]]
97[[/folder]]
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99[[folder:Music]]
100* In "Ballad of Davy Crockett (In Outer Space)" by Music/TheyMightBeGiants, because Davy is "Messing around with the fabric of time. He knows who's guilty 'fore there's even a crime".
101[[/folder]]
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103[[folder:Video Games]]
104* ''VideoGame/BloodOmenLegacyOfKain'' has an example of how ''spectacularly badly'' attempting this trope can go. Throughout the game, the land of Nosgoth is suffering under the iron hand of the EvilOverlord known only as “The Nemesis”. Near the end of the game, Kain finds himself decades in the past, with the Nemesis at his mercy… and he kills the tyrant before his tyranny can begin. When he returns to the future, he discovers that [[spoiler:history has recorded the murder of “King William the Just” at the hands of a vampire, and this provided Moebius the Time Streamer with the impetus to ignite a retaliatory campaign of vampiric genocide - a successful one, as Kain arrives just as Vorador, the penultimate vampire, is executed, leaving Kain as the LastOfHisKind]].
105* This is how ''Franchise/TheLegendOfZelda'''s "[[AlternateTimeline Child Timeline]]" comes about. At the end of ''[[VideoGame/TheLegendOfZeldaOcarinaOfTime Ocarina of Time]]'', Link is sent back in time permanently in order to properly live out his childhood. After placing the Master Sword back in its pedestal, he goes to warn Zelda and the rest of Hyrule's decision-makers about what Ganondorf is planning. This results in the passage to the Sacred Realm never being opened, while Ganondorf is sealed in the Twilight Realm instead, setting the stage for ''[[VideoGame/TheLegendOfZeldaTwilightPrincess Twilight Princess]]''.
106* The plot of ''VideoGame/WatchDogs2'' is kicked off by Marcus Holloway, who breaks into a [=CTOS=] server farm to erase the digital files [[MegaCorp Blume]] has on him. His digital file contains his legal record, which stated that he was the prime suspect in a burglary, that he's a skilled programmer, and has a license to own a gun. Although there was no concrete evidence that he was responsible for the robbery, he was convicted only because [=CTOS=] calculated that he was threat because of the aforementioned variables.
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110* The Season 4 ''WebAnimation/BravestWarriors'' episode "From the Inside Room" has Danny serve a [[LongerThanLifeSentence thousand-year]] sentence in a time prison for an unspecified crime he hasn't even committed yet.
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114* ''Literature/AGoldenIslandToTheWest'': The Tsar of Russia begins having people arrested using future knowledge of crimes they 'would' commit against his rule in the future. Arresting an eight-year-old for writing a seditious book, or trying to arrest someone for plotting his assassination despite them not even being born yet.
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118* ''WesternAnimation/{{Futurama}}'' parodied ''Minority Report'' in an episode where Fry joined the police's Future Crimes division.
119* ''WesternAnimation/TheSimpsons'': In the "Revenge of the Geeks" segment of "[[Recap/TheSimpsonsS18E11RevengeIsADishBestServedThreeTimes Revenge Is a Dish Best Served Three Times]]", Milhouse goes on a RoaringRampageOfRevenge against students who wronged him in the past. When he's about to humiliate a kid, who says today is their first day at the school, Milhouse says the kid will do something bad to him in the future, so he's still going to need revenge. ("It's called pre-venge!")
120* ''WesternAnimation/CodenameKidsNextDoor'': One episode that had Numbuh 3 take on Numbuh 2's FilmNoir identity features a "pre-delinquency unit" that gives Gallagher Elementary School students detentions for future rule-breaking, formed around a student seer who makes drawings out of crayons of said crimes. [[spoiler:Turns out their seer was actually a hoax, being just a boy with heterochromia. His entire motivation was to get everyone of the kids in trouble in order to be the first in line for pizza bagels, since they'd usually run around when he arrived. Unfortunately for him, he did his scheme on a day where they were serving ''lima bean sandwiches'']].
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124* While in the West, outright arrest is not allowed, there had been examples, such as Chicago, [[https://www.independent.co.uk/arts-entertainment/films/features/precrime-film-documentary-minority-report-police-a8289576.html with the use of an algorithm to predict its inhabitants’ potential involvement with violent crime, which creates a Strategic Subject List - known colloquially as the "heat list" - a comprehensive list of who it considers to be the most dangerous people in the city]], and people are commonly warned due to this list.
125* While in the West it is seen as a pretty heavy example of HollywoodLaw and ArtisticLicenseLaw, this is already implemented by [[https://www.wsj.com/articles/china-said-to-deploy-big-data-for-predictive-policing-in-xinjiang-1519719096 China as "Integrated Joint Operations Platform"]], using Big Data to identify and pre-emptively detain potential troublemakers in Xinjiang.
126* Preventative detention of terrorists and also criminals in general has been criticized as being this. Some countries like Germany and France allow convicts to be detained once the sentence has been served if they're deemed a high risk of recidivism.
127* On a more mundane level, nearly every country has laws against [[https://en.wikipedia.org/wiki/Conspiracy_(criminal) conspiracy to commit a crime]] and in many jurisdictions you can be arrested for possessing "burglary tools", such as lockpicks, unless you can prove you had them for a lawful purpose. To be charged with a conspiracy, the participants must have committed at least one "overt act" in furtherance of it however (such as obtaining guns to commit a bank robbery before it takes place). Arresting someone because of what they're clearly planning to do before they can actually do it can be justified if it would prevent people from being harmed or killed. As just one example, [[https://www.theglobeandmail.com/news/national/tip-from-imam-led-police-to-first-known-al-qaeda-plan-of-attack-that-weve-experienced/article11492749/ Canadian police arrested two al-Qaeda agents plotting to derail a train after a Muslim imam alerted them.]]
128* In 1994, police officers in Queensland, Australia who came to be known as the Pinkenba Six were charged with deprivation of liberty after driving three Aboriginal boys aged 12-14 to a remote area, threatening to throw them in a swamp and leaving them stranded (their trip back home was considerably shortened thanks to a GoodSamaritan who paid for a taxi). This was an attempt to ScareEmStraight - the boys had no criminal record, weren't committing a crime at the time and weren't accused of any crimes. The officers were put on probation by the police force, but were never criminally convicted.
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