Chief Justice Earl Warren (1891–1974) wrote the majority opinion in the case of Ernesto Arturo Miranda against the state of Arizona, decided on June 13, 1966, and which was one of a group of four similar cases. The majority decision established that before a defendant’s statement to police could be admitted as evidence, the prosecution had to prove that the defendant was informed of his right to counsel and against self-incrimination, now referred to as “Miranda Rights.”