The Guardian · US news · Original story
US supreme court rules geofence warrants require constitutional privacy protections
Law enforcement’s use of warrants sweeping smartphone location data requires privacy protections, court rules
US supreme court decisions – live updates
The US supreme court has ruled that law enforcement’s use of sprawling warrants that sweep up smartphone location data requires privacy protections under the fourth amendment, in a boost to critics who view their use as an unconstitutional dragnet.
Justice Elena Kagan wrote the majority opinion, which held that the sensitive data scooped up by “geofence warrants” counts as a fourth amendment search, and offers individuals a “reasonable expectation of privacy”, even if they may be in a public area.
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Sanya Mansoor · Mon, Jun 29, 2026, 8:23 AM
US news | The Guardian
Law enforcement’s use of warrants sweeping smartphone location data requires privacy protections, court rules
The US supreme court has ruled that law enforcement’s use of sprawling warrants that sweep up smartphone location data requires privacy protections under the fourth amendment, in a boost to critics who view their use as an unconstitutional dragnet.
Justice Elena Kagan wrote the majority opinion, which held that the sensitive data scooped up by “geofence warrants” counts as a fourth amendment search, and offers individuals a “reasonable expectation of privacy”, even if they may be in a public area.
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