Supreme Court Says Geofence Searches Trigger Fourth Amendment ProtectionsAmericans have a privacy right in smartphone location data.Mark A. KellnerJul 02, 2026∙ Paid1ShareMobile phones can record users’ movements. Photo: Kernow Skies / Wikimedia CommonsPolice conduct a Fourth Amendment search when they obtain a person’s smartphone location data through a geofence warr…This post is for paid subscribersSubscribeAlready a paid subscriber? Sign in