Geo-fence warrant

Source: Wikipedia, the free encyclopedia.

A geo-fence warrant (also known as a geofence warrant or a reverse location warrant) is a

geolocation data.[1][2] Geo-fence warrants are a part of a category of warrants known as reverse search warrants.[3]


Geo-fence warrants were first used in 2016.[4] Google reported that it had received 982 such warrants in 2018, 8,396 in 2019, and 11,554 in 2020.[3] A 2021 transparency report showed that 25% of data requests from law enforcement to Google were geo-fence data requests.[5] Google is the most common recipient of geo-fence warrants and the main provider of such data,[4][6] although companies including Apple, Snapchat, Lyft, and Uber have also received such warrants.[4][5]


United States

Some lawyers and privacy experts believe reverse search warrants are unconstitutional under the

general warrants, which were made illegal by the Fourth Amendment.[7]

Groups including the Electronic Frontier Foundation have opposed geofence warrants in amicus briefs filed in motions to quash such orders to disclose geofence data.[8]

See also


  1. ISSN 0362-4331
    . Retrieved October 17, 2021.
  2. ^ Brewster, Thomas (December 11, 2019). "Google Hands Feds 1,500 Phone Locations In Unprecedented 'Geofence' Search". Forbes. Retrieved October 17, 2021.{{cite web}}: CS1 maint: url-status (link)
  3. ^ a b Bhuiyan, Johana (September 16, 2021). "The new warrant: how US police mine Google for your location and search history". The Guardian. Retrieved October 17, 2021.
  4. ^ a b c "Geofence Warrants and the Fourth Amendment". Harvard Law Review. 134 (7). May 10, 2021.
  5. ^
    ISSN 1059-1028
    . Retrieved October 17, 2021.
  6. – via JSTOR.
  7. ^ a b c "Geofence Warrants and the Fourth Amendment". Harvard Law Review. 134 (7). May 10, 2021.
  8. ^ Lynch, Jennifer; Sobel, Nathaniel (August 31, 2021). "New Federal Court Rulings Find Geofence Warrants Unconstitutional". Electronic Frontier Foundation. Retrieved October 18, 2021.{{cite web}}: CS1 maint: url-status (link)