the last time your phone asked you to allow this or that app access to your location data, you may have had some trepidation about how much Apple or Google know about you. You may have worried about what might come of that, or read about China’s use of the data to track anti-lockdown protesters. What you probably didn’t realize is Google has already searched your data on behalf of the federal government to see if you were involved with January 6th.
But last month, the federal district court in DC issued an opinion in the case of one of the many defendants who stands accused of sacking the Capitol in the wake of the 2020 election.
And with it, Judge Rudolph Contreras became the first federal district judge to approve a “Geofence” warrant, endorsing a recent police innovation: searching the cell phone history of every American to check who happened to be in the area of some potential crime.
The “Geofence” in this context refers to cell phone location data collected by Google from users of its Android operating system, as well as iPhone users who use apps such as Google Maps. Location tracking can be turned off, but most users allow it for the convenience of getting directions, tracking their daily jog, or finding the nearest Chipotle. The Government’s warrant demanded location history for every Google account holder within a range of longitude and latitude roughly corresponding to the Capitol building on the afternoon of January 6, 2021, along with similar data from that morning and evening (to filter out Hill staff and security guards).
