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Evidence Commons

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Fourth Amendment

University of Michigan Law School

Michigan Law Review

Mapp v. Ohio

Publication Year

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Full-Text Articles in Evidence

Evidence Illegally Seized By Private Persons Excluded From Criminal Prosecution--People V. Mccomb, Michigan Law Review Nov 1965

Evidence Illegally Seized By Private Persons Excluded From Criminal Prosecution--People V. Mccomb, Michigan Law Review

Michigan Law Review

At common law, illegally seized evidence was admissible on the theory that the nature of the seizure did not necessarily affect the probative value of the evidence. However, in 1914 the United States Supreme Court, in order to protect the fourth amendment's guarantee of freedom from unreasonable searches and seizures, adopted a rule excluding from federal courts evidence illegally seized by federal officials. In 1961, the scope of this rule was extended by Mapp v. Ohio, which held that all evidence obtained in violation of the fourth amendment is inadmissible in state courts. However, the Mapp doctrine applies only …


Betts V. Brady Twenty Years Later: The Right To Counself And Due Process Values, Yale Kamisar Dec 1962

Betts V. Brady Twenty Years Later: The Right To Counself And Due Process Values, Yale Kamisar

Michigan Law Review

I am quite distressed by talk that the landmark case of Mapp v. Ohio "suggests by analogy" that the Court may now overrule Betts v. Brady. For whether one talks about the fourth or the sixth amendment, there is much to be said for Justice Harlan's dissenting views in Mapp. "[W]hatever configurations ... have been developed in the particularizing federal precedents" should not be "deemed a part of 'ordered liberty,' and as such ... enforceable against the States .... [W]e would not be true to the Fourteenth Amendment were we merely to stretch the general principle [ of …