Once there has been a lawful "seizure" of the "person," the taking of a voice exemplar involves no Fourth Amendment consideration. No expectation of privacy exists as to a person's voice because it is a physical characteristic which is constantly exposed to the public. See United States v. Dionisio, supra.
This is archived content from the U.S. Department of Justice website. The information here may be outdated and links may no longer function. Please contact firstname.lastname@example.org if you have any questions about the archive site.
257. Voice Exemplars—Search and Seizure
Updated January 22, 2020