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Illinois v. Perkins

Supreme Court of the United States · 1990 · Criminal Procedure

Criminal ProcedureFifth AmendmentMirandaundercover agentjailhouse informantcustodyMirandacustodial interrogation

Facts

While respondent Perkins was jailed on an aggravated battery charge unrelated to an unsolved murder, police placed undercover agent John Parisi and inmate Donald Charlton in his cellblock to investigate the murder. Parisi, posing as a fellow inmate, engaged Perkins in conversation about an escape plan, and after Charlton remarked that murder was Perkins' line of work, Parisi asked whether Perkins had ever "done" anybody. Perkins then described the murder in detail. Parisi did not give Miranda warnings before the conversation.

Issue

Must an undercover law enforcement officer posing as a fellow inmate give Miranda warnings to an incarcerated suspect before asking questions likely to elicit incriminating statements? More specifically, does such undercover questioning constitute the kind of custodial interrogation that triggers Miranda when the suspect does not know he is speaking to a government agent?

Rule

Miranda warnings are required only for custodial interrogation implicating the coercive pressures of official questioning in a police-dominated atmosphere. When a suspect is unaware that he is speaking to a law enforcement officer and gives a voluntary statement to an undercover agent posing as a fellow inmate, those coercive pressures are absent, so Miranda warnings are not required.

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One of 10 multiple-choice questions for this case. Pick an answer to see why.

Darius Cole was being held in the county jail in Columbus, Ohio, on an uncharged parole violation. Police investigating a separate warehouse arson placed an undercover detective in his housing unit dressed as an inmate. Believing the detective was just another prisoner, Darius bragged over cards that he had set the fire to scare a business rival.

At Darius's later arson trial, is his statement most likely admissible despite the lack of Miranda warnings?

Explanation. The statement is admissible. The governing rule is that Miranda is aimed at custodial interrogation producing the coercive pressures of official questioning in a police-dominated atmosphere. When the suspect believes he is talking to a fellow inmate rather than law enforcement, those pressures are absent from the suspect's perspective. Mere undercover deception does not itself violate Miranda, so a voluntary jailhouse confession to an apparent inmate is admissible without warnings.