The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
- Wikipedia: Fourth Amendment
- Wikipedia: Mapp v. Ohio
- Applies to the states
- Wikipedia: Olmstead v. United States
- Wikipedia: Silverman v. United States
- Wikipedia: Katz v. United States
- Expectation of privacy
- Wikipedia: Smith v. Maryland
- Fourth amendment applicable when:
- a person "has exhibited an actual (subjective) expectation of privacy"; and
- society is prepared to recognize that this expectation is (objectively) reasonable.
- Cornell Law: Fourth Amendment
See also Probable Cause