Whether the Fifth Amendment privilege against self-incrimination applies to custodial police interrogation.
Holding
Yes. The privilege applies when law-enforcement officers question a person who has been taken into custody or otherwise significantly deprived of freedom.
Reasoning
The Court defined “custodial interrogation” as questioning initiated by law enforcement after a person is taken into custody or otherwise deprived of freedom in a significant way. The Fifth Amendment protects against compelled self-incrimination not only in a courtroom, but also in settings where official pressure can compel a person to speak.
Custodial interrogation is inherently coercive because it commonly removes a suspect from familiar surroundings, isolates the suspect in a police-dominated environment, and uses psychological techniques designed to weaken resistance. The Court emphasized that compulsion may be mental as well as physical; a confession need not follow overt violence to be constitutionally suspect.
The privilege reflects a basic commitment to personal dignity and to an accusatorial system in which the government must establish guilt through its own independent investigation rather than by compelling an accused person to provide the evidence against himself. Existing voluntariness doctrine did not adequately dispel the pressures inherent in station-house interrogation.