Miranda v. Arizona (1966) established that the prosecution may not use statements obtained from defendants during custodial interrogation unless it demonstrates the use of procedural safeguards to secure the privilege against self-incrimination. Ernesto Miranda was interrogated by police for two hours without being informed of his right to remain silent and have an attorney present. His confession was used to convict him, but the Supreme Court ultimately ruled 5-4 that his confession should have been excluded from trial because his rights were not properly protected during questioning. The ruling established that the police must inform individuals in custody of their Fifth Amendment right against self-incrimination and Sixth Amendment right to an attorney before interrogation.