>On a satellite image, they drew shapes around the crime scenes, marking the coordinates on the map. Then they convinced a Wake County judge they had enough probable cause to order Google to hand over account identifiers on every single cell phone that crossed the digital cordon during certain times.
>In at least four investigations last year -- cases of murder, sexual battery and even possible arson at the massive downtown fire in March 2017 – Raleigh police used search warrants to demand Google accounts not of specific suspects, but from any mobile devices that veered too close to the scene of a crime, according to a WRAL News review of court records. These warrants often prevent the technology giant for months from disclosing information about the searches not just to potential suspects, but to any users swept up in the search.
http://www.wral.com/Raleigh-police-search-google-location-history/17377435/
Few weeks back I pointed out this was going on, that when a crime happens Google and LE pull info from all Android phones in the area looking for anything suspicious and someone here said I was wrong. I couldn't find an article about it back then to prove it but here's one.