Home > Great American Court Cases > Ullmann v. United States

Legal Citation: 350 U.S. 422 (1956)

Petitioner
William Ludwig Ullmann

Respondent
United States

Petitioner's Claim
That the Immunity Act of 1954, making it a criminal offense to refuse to testify about matters of national security, violates the Fifth Amendment privilege against self-incrimination.

Chief Lawyer for Petitioner
Leonard B. Boudin

Chief Lawyer for Respondent
Charles F. Barber

Justices for the Court
Harold Burton, Tom C. Clark, Felix Frankfurter (writing for the Court), John Marshall Harlan II, Sherman Minton, Stanley Forman Reed, Earl Warren

Justices Dissenting
Hugo Lafayette Black, William O. Douglas

Place
Washington, D.C.

Date of Decision
26 March 1956

Decision
The Supreme Court upheld the Immunity Act.