Mapp v. Ohio · ¶20

“[A] conviction in the federal courts, the foundation of which is evidence obtained in disregard of liberties deemed fundamental by the Constitution, cannot stand. Boyd v. United States ... Weeks v. United States .... And this Court has, on Constitutional grounds, set aside convictions, both in the federal and state courts, which were based upon confessions ‘secured by protracted and repeated questioning of ignorant and untutored persons, in whose minds the power of officers was greatly magnified'... or ‘who have been unlawfully held incommunicado without advice of friends or counsel’....” At pp. 339-340.

U. S. Reports, bound volume
U. S. Reports, volume 367, at 643 (Library of Congress) · transcription: Caselaw Access Project
Passage preview. Read in context for the complete text, notes and references.