Ernesto Miranda
The Court held that both inculpatory and exculpatory statements made in response to interrogation by a defendant in police custody will be admissible at trial only if the prosecution can show that the defendant was informed of the right to consult with an attorney before and during questioning and of the right against self-incrimination before police questioning, and that the defendant not only understood these rights, but voluntarily waived them. The Miranda warning became a standard part of routine US police procedure.