Mapp Hearing – held to determine if evidence was obtained via an illegal search and seizure, and should therefore be suppressed

     This page is continued from >>>> Court Proceedings >>>> Criminal Proceedings >>>> Phases of a Criminal Court Proceedings >>>> Hearing >>>> Hearings pertaining to Suppressing Evidence and the Fourth Amendment:


Mapp hearing:

1. Criminal procedure. A hearing held to determine whether evidence implicating the accused was obtained as a result of an illegal search and seizure, and should therefore be suppressed. Mapp v. Ohio, 367 U.S. 642, 81 S.Ct. 1684 (1961).

Mapp v. Ohio:

A 1961 decision of the Supreme Court (367 U.S. 643) holding that evidence seized by the police in violation of the Fourth Amendment ban on unreasonable searches and seizures is inadmissible in a criminal prosecution in state court, under the exclusionary rule, which applies in the states by virtue of the Fourth Amendment. [2]

     Excerpt from Essential Supreme Court Decisions; Summaries of Leading Cases in u.S. Constitutional Law” by John R. Vile:

     “The Fourth Amendment does not specify what shall happen in cases where the government conducts illegal searches and seizures, but the Supreme Court has developed the exclusionary rule largely in an attempt to deter illegal police conduct in such cases.  Originally applied only to the national government in Weeks v. United States (1914), the Court extended this rule to the states in Mapp v. Ohio (1961).  Largeley becasue this rule often results in the loss of probative evidence, since then the Court has carved out a number of exceptions, as wehn governmental officials act in reasonable good faith, United States v. Leon (1984), or when courts believe that information obtained in a search would otherwise have been the result of ‘inevitable discovery,’ Nix v. Williams (1984). [3]


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[1]: Black’s Law Dictionary Deluxe Tenth Edition by Henry Campbell Black & Editor in Chief Bryan A. Garner. ISBN: 978-0-314-62130-6

[2]: Ballantine’s Law Dictionary with Pronunciations
Third Edition
 by James A. Ballantine (James Arthur 1871-1949).  Edited by William S. Anderson.  © 1969 by THE LAWYER’S CO-OPERATIVE PUBLISHING COMPANY.  Library of Congress Catalog Card No. 68-30931

[3]:  Ballantine’s Law Dictionary Legal Assistant Edition
by Jack Ballantine 
(James Arthur 1871-1949).  Doctored by Jack G. Handler, J.D. © 1994 Delmar by Thomson Learning.  ISBN 0-8273-4874-6.

[4]: “Essential Supreme Court Decisions; Summaries of Leading Cases in u.S. Constitutional Law” by John R. Vile, p. 334


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