It has been used by law enforcement to obtain a geo-fence warrant and to search for all devices within the vicinity of a crime, (within a geo-fenced area): :  and after looking at those devices' movements and narrowing those devices down to potential suspects or witnesses, then asking Google for the information about the owners of those devices.: : 
- Valentino-DeVries, Jennifer (2019-04-13). "Tracking Phones, Google Is a Dragnet for the Police". The New York Times. Archived from the original on 2019-06-02. Retrieved 2019-08-15.
- Brewster, Thomas (2019-12-11). "Google Hands Feds 1,500 Phone Locations In Unprecedented 'Geofence' Search". Forbes. Archived from the original on 2020-01-01. Retrieved 2020-01-24.
- Webster, Tony (2019-02-07). "How did the police know you were near a crime scene? Google told them". MPR News. Archived from the original on 2019-03-29. Retrieved 2019-08-15.