Appellant: Dollree Mapp
Appellee: State of Ohio
Appellant's Claim: That convicting her with evidence obtained during an illegal search violated the Fourth Amendment.
Chief Lawyer for Appellant: A.L. Kearns
Chief Lawyer for Appellee: Gertrude Bauer Mahon
Justices for the Court: Hugo Lafayette Black, William J. Brennan, Jr., Tom C. Clark, William O. Douglas, Potter Stewart, Earl Warren
Justices Dissenting: Felix Frankfurter, John Marshall Harlan II, Charles Evans Whittaker
Date of Decision: June 19, 1961
Decision: The Supreme Court reversed Mapp's conviction.
Significance: Until Mapp, states did not have to obey the exclusionary rule, which prevents the government from using evidence its gets during an illegal search and seizure. By forcing states to obey the exclusionary rule, the Supreme Court strengthened the Fourth Amendment's protection of privacy for Americans. …
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