US appeals court rules geofence warrants are unconstitutional | TechCrunch

TIL

"Geofence warrants, also known as “reverse” search warrants, allow police to draw a shape on a map, such as over a crime scene, and demand that Google (or any other company that collects user locations) search its entire banks of location data for any phone or device that was in that area at a specific point in time."

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