Geo-fence warrant

A Geo-fence warrant (also known as a geofence warrant) is a search warrant issued by a court to allow law enforcement to search a database to find all active mobile devices within a particular geo-fence area. Courts have granted law enforcement geofence warrants to obtain information from databases such as Google's Sensorvault which collect users' historical geo-location data via GPS records. These geo-fence warrants have led to privacy and Fourth Amendment concerns where innocent passersby have been subjected to unjustified searches of their Google accounts due to innocently passing by the locations of crime sites.