The Supreme Court restricted how police can use geofence warrants—tools that pull phone location data for everyone in a geographic area—but deliberately avoided ruling whether this data deserves constitutional protection. The gap between what the Court limited and what it refused to constitutionally protect is where the real fight will happen.
Geofence warrants let police demand location data for all phones in an area, not targeting individuals
Court imposed practical limits on the tool without establishing it violates Fourth Amendment privacy rights
Absence of constitutional prohibition leaves door open for future cases to expand the practice again