Dollree Mapp was convicted of possessing obscene materials after an admittedly illegal police search of her home for a fugitive. She appealed her conviction on the basis of freedom of expression. Were the confiscated materials protected from seizure by the Fourth Amendment?

Mapp v. Ohio: The prosecution is not allowed to present evidence that law enforcement secured during a search that was unconstitutional under the Fourth Amendment.

Mapp v. Ohio, 367 U.S. 643 (1961), was a landmark U.S. Supreme Court decision in which the Court ruled that the exclusionary rule, which prevents a prosecutor from using evidence that was obtained by violating the Fourth Amendment to the U.S. Constitution, applies to states as well as the federal government.

Mapp v. Ohio, case in which the U.S. Supreme Court on June 19, 1961, ruled (6–3) that evidence obtained in violation of the Fourth Amendment to the U.S. Constitution, which prohibits ‘unreasonable searches and seizures,’ is inadmissible in state courts.

2017年3月11日 · Case Summary of Mapp v. Ohio: Mapp’s home was searched absent a warrant. The search yielded the discovery of material classified as “obscene” under Ohio state law. The Supreme Court held that evidence obtained from an unreasonable search and seizure could not be used against the accused in criminal state court.

2020年8月13日 · The Supreme Court's 1961 decision in Mapp v. Ohio made huge changes for the rights of those accused of a crime by deciding whether evidence gathered without a warrant was admissible in state court. Find out more on FindLaw's Supreme Court Insights.

In Mapp, police officers entered Dollree Mapp’s home without a search warrant and found obscene materials there. Mapp was convicted of possessing these materials, but challenged her conviction.

After losing an appeal to the Ohio Supreme Court, Mapp took her case to the U.S. Supreme Court. The Court determined that evidence obtained through a search that violates the Fourth Amendment is inadmissible in state courts.

Police officers sought a bombing suspect and evidence of the bombing at the petitioner, Miss Mapp’s (the “petitioner”) house. After failing to gain entry on an initial visit, the officers returned with what purported to be a search warrant, forcibly entered the residence, and conducted a search in which

Mapp v. Ohio was a 1961 landmark Supreme Court case decided 6–3 by the Warren Court, in which it was held that Fourth Amendment’s protection against unreasonable searches and seizures applied to the states and excluded unconstitutionally obtained evidence from use in state criminal prosecutions .