In Miranda v. Arizona, the U.S. Supreme Court rules that the Fifth Amendment right against self-incrimination is not limited to in-court testimony, but also applies when a person is taken into police custody for questioning. The Court also rules that criminal suspects must be told of their Sixth Amendment right to an attorney. Once a person “indicates in any manner that he does not wish to be interrogated,” the police must stop asking questions – even if the person has answered questions up to that point, the Court says.
These mandatory statements by police have become known as Miranda rights or Miranda warning, and the process of informing a person of these rights has become known as Mirandizing.