Miranda Rights: What They Are, When They Apply, and What Happens If Police Don't Read Them

9 min • Criminal Law

Miranda rights are the warnings that police must give to suspects before custodial interrogation. Established by Miranda v. Arizona, 384 U.S. 436 (1966), these rights include: the right to remain silent, the warning that anything you say can be used against you, the right to an attorney, and the right to have an attorney appointed if you cannot afford one. The purpose is to protect Fifth Amendment rights against self-incrimination.

Miranda only applies when two conditions are met: (1) the suspect is in custody — meaning a reasonable person would not feel free to leave, and (2) the suspect is being interrogated — meaning police are asking questions or engaging in conduct likely to elicit an incriminating response. If either condition is missing, Miranda warnings are not required. Voluntary statements made without questioning are generally admissible.

The Supreme Court has defined 'custody' through cases like Berkemer v. McCarty, 468 U.S. 420 (1984), which held that routine traffic stops are not custody for Miranda purposes. In J.D.B. v. North Carolina, 564 U.S. 261 (2011), the Court held that a child's age is relevant to the custody analysis. In Howes v. Fields, 565 U.S. 499 (2012), the Court ruled that prison inmates questioned about matters separate from their incarceration are not necessarily in custody.

If police fail to give Miranda warnings when required, any statements obtained are generally inadmissible in the prosecution's case-in-chief. However, physical evidence discovered as a result of an unwarned statement may still be admissible under United States v. Patane, 542 U.S. 630 (2004), which held that the exclusionary rule does not apply to physical fruits of unwarned statements. Statements can also be used for impeachment if the defendant testifies inconsistently.

You can waive Miranda rights, but the waiver must be knowing, intelligent, and voluntary. Invoking your rights must be clear and unambiguous. Under Berghuis v. Thompkins, 560 U.S. 370 (2010), remaining silent is not enough to invoke the right to remain silent — you must affirmatively state that you are invoking your right. Simply saying 'I want a lawyer' or 'I'm invoking my right to remain silent' is the clearest approach.

Key Takeaways

• Miranda requires warnings before custodial interrogation (both custody AND questioning)
• Rights: remain silent, statements can be used against you, right to attorney, appointed counsel
• Without warnings, statements are inadmissible in prosecution's case (but physical evidence may be OK)
• To invoke rights, be clear and unambiguous — silence alone is not enough (Berghuis)
• A child's age is relevant to whether they're 'in custody' for Miranda purposes

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