Plain-English Explanation
The Fourth Amendment and related privacy doctrines protect reasonable expectations of privacy against government intrusion. Courts ask whether a person had a subjective and objectively reasonable expectation of privacy in the place or thing searched.
Relevant Provision
U.S. Const. amend. IV.
Relevant Decisions
Riley v. California
573 U.S. 373 (2014)
Held that police generally need a warrant to search digital information on a cell phone seized incident to arrest.