In the case of Milton v. Wainwright, 1971, the U.S Supreme Court ruled in favor of petitioner James Milton who was convicted for robbery by a Florida state court and sentenced to life imprisonment. The issue at hand was whether or not Milton's Sixth Amendment right to counsel had been violated when he confessed during an interrogation without his attorney present. The Supreme Court held that it indeed constituted a violation as per Escobedo v. Illinois (1964) and Miranda v. Arizona (1966). These cases established that suspects have the right to legal counsel during police interrogations and must be informed about their rights before any questioning takes place respectively; failure to do so would render any confession obtained unconstitutional under Fifth Amendment protections against self-incrimination.

In the dissenting opinion for Milton v. Wainwright, Justice William O. Douglas argued that the majority's decision to uphold Milton's conviction despite his lack of legal representation during a critical stage of his trial was a violation of his Sixth Amendment rights. He contended that any confession obtained without counsel present should be considered inadmissible as evidence due to its potential unreliability and coercive nature. Furthermore, he criticized the majority for their narrow interpretation of when an accused person is entitled to counsel, asserting it should extend beyond just formal court proceedings or trials but also include other crucial stages such as police interrogations where significant decisions affecting one’s defense are made.