Ullmann v. United States, 350 U.S. 422 (1956), was a United States Supreme Court case in which the court held that a person given immunity from prosecution loses their Fifth Amendment right against self-incrimination, thus upholding the Constitutionality of the Immunity Act of 1954.

[1] The Court stated, "This command of the Fifth Amendment ('nor shall any person .

be compelled in any criminal case to be a witness against himself.

registers an important advance in the development of our liberty — 'one of the great landmarks in man's struggle to make himself civilized.'

This article related to the Supreme Court of the United States is a stub.