Victory! Supreme Court Says Constitution Protects People’s Location Data
The U.S. Supreme Court ruled in Chatrie v. United States that people have a Fourth Amendment privacy interest in location data tracking their physical movements, and that even short-term surveillance of those movements constitutes a search requiring constitutional justification. The case centered on geofence warrants, which allow police to collect location data from all devices near a crime scene.
Why this matters: This is a real limit on a surveillance tool that treated everyone in the wrong place at the wrong time as a potential suspect. Geofence warrants work backward: grab data first, find a person second. That is a wide net cast over innocent people. Today's ruling means police need to clear a constitutional bar before going fishing in that data. It does not end the practice, but it means your location history is not simply available to law enforcement because you happened to be nearby when something happened.
Who should care: Privacy officers · Cybersecurity · General readers · Policy
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