Currently there are dueling circuit court opinions on geofencing and the constitutionality of this investigative tool. This conflict presents an opportunity to redefine two fundamental issues of ...

In March 2022, I had a long post on the district court's ruling in United States v. Chatrie, the first federal district court ruling on geofence warrants and the Fourth Amendment. Today the Fourth ...

Though a handful of cases found that geofencing warrants are unconstitutional, the rulings were narrow, and unlikely to slow the growing prominence of these warrants, which look to obtain data from ...

I wrote last week about an oral argument in the Fourth Circuit involving geofence warrants. Geofence warrants are warrants to obtain the location data that Google users let Google collect if they opt ...

Civil liberties advocates have long argued that “geofence” search warrants are unconstitutional for their ability to ensnare entirely innocent people who were nearby at the time a crime was committed.