In his dissent in Piccirillo v. New York, Justice William J. Brennan, Jr. argues that the Fifth Amendment’s protection against self-incrimination requires complete immunity for individuals called to testify, rather than just safeguards against the use of their statements. Brennan criticizes New York’s immunity law, contending that it does not prevent the state from charging individuals for offenses exposed through forced confessions, thus contravening constitutional standards.
He maintains that transactional immunity—preventing individuals from facing prosecution for any disclosed wrongdoing—is crucial to preserving the Amendment’s original purpose, as limited use immunity still exposes witnesses to potential criminal charges later. Brennan’s dissent highlights the conflict between state procedural rules and the federal constitutional safeguard against self-incrimination, stressing that the Court’s attention to state law distracts from the core constitutional issue at hand.