Mapp v. Ohio (1961) was a landmark Supreme Court case that established the exclusionary rule, which prohibits the use of illegally obtained evidence in court. The case arose when police conducted a warrantless search of Dollree Mapp's home, leading to her conviction for possessing obscene materials. The ruling affirmed that the Fourth Amendment's protections against unreasonable searches applied to state courts.
![Mapp v. Ohio [SCOTUSbrief]](https://i.ytimg.com/vi/jVl4XD3NkKo/maxresdefault.jpg)
