The use of legal authority to deprive someone of his or her freedom of movement.  Under U.S. law, placing someone under arrest triggers certain legal requirements, such as the requirement that the person be given the Miranda warning.  Under the Constitution, arrest is governed by the Fourth Amendment.

Illustrative caselaw

See, e.g. Maryland v. Shatzer, 130 S.Ct. 1213 (2010).

See also