Fifth Amendment Self-Incrimination
Rule
The Fifth Amendment provides that no person “shall be compelled in any criminal case to be a witness against himself.” The privilege protects against compelled, testimonial, incriminating communications. It applies in any proceeding — grand jury, trial, civil proceeding — where the answer could be used against the person in a criminal case.
Elements / Requirements
A communication is protected only if it is:
- Compelled — government-coerced; voluntary statements are not protected
- Testimonial — communicates facts or information; purely physical evidence (blood, DNA, voice exemplars, handwriting samples) is not testimonial
- Incriminating — tends to subject the person to criminal liability
Exceptions and Limitations
Immunity
The government may compel testimony by granting immunity:
- Use immunity: bars use of the compelled testimony itself in a subsequent prosecution
- Use and derivative use immunity (Kastigar standard): bars use of the testimony AND any evidence derived from it — this is constitutionally sufficient to overcome the Fifth Amendment privilege
- Transactional immunity: broader — bars prosecution for the transaction about which testimony is given (not constitutionally required but sometimes granted by statute)
Act-of-Production Doctrine
See Act-of-Production Doctrine for the distinct question of whether compelling production of documents is itself testimonial.
Entity Exception
Corporations and other collective entities have no Fifth Amendment privilege. A custodian of corporate records cannot assert the privilege to resist producing entity records, even if those records incriminate the individual custodian (Braswell v. United States).
Waiver
The privilege may be waived by voluntary testimony at trial. Once a defendant takes the stand, cross-examination on related matters is permitted.
Policy
The privilege reflects the accusatorial (adversarial) system’s principle that the government bears the burden of proving guilt by its own evidence; the state cannot conscript the defendant to build its case. It also guards against coerced confessions and the cruel trilemma of self-accusation, perjury, or contempt.
Key Cases
- Kastigar v. United States — use/derivative use immunity is constitutionally sufficient; government bears burden of showing independent source for post-immunity prosecution evidence
- United States v. Hubbell — act of production of subpoenaed documents is testimonial; Fifth Amendment barred subsequent prosecution where government conceded it had no independent knowledge of the documents
- United States v. Allen — testimony compelled under foreign immunity order in parallel proceedings; Fifth Amendment bars use of compelled statements and their fruits in domestic criminal prosecution
- Fisher v. United States — foundational act-of-production analysis; pre-existing documents not protected, but the act of producing them may be
- Braswell v. United States — no Fifth Amendment privilege for corporate records; custodian acts as agent of entity