Frazier v. United States

On April 27, 2026, the U.S. Supreme Court heard Frazier v. United States, a landmark digital privacy case. Federal agents obtained a geofence warrant requiring Google to identify all devices near a bank robbery scene, which led to Marcus Frazier's arrest. Frazier moved to suppress the evidence, arguing the warrant was an unconstitutional general warrant because it swept in data from dozens of innocent people without individualized suspicion. The district court denied the motion, and the Sixth Circuit affirmed, holding that geofence warrants satisfy the Fourth Amendment's particularity requirement. The Supreme Court granted certiorari to resolve a deepening circuit split over whether such dragnet search techniques violate the right to be free from unreasonable searches and seizures.

The Supreme Court reversed the Sixth Circuit in a 5-4 decision, holding that geofence warrants are unconstitutional general warrants absent a showing of particularized probable cause as to each person whose data is searched. The Court required individualized suspicion or a narrowly tailored temporal and spatial scope approved by a neutral magistrate.

Whether a geofence warrant that compels a technology company to search the location records of every device within a defined area, without naming specific suspects, constitutes an impermissible general warrant in violation of the Fourth Amendment’s particularity and probable cause requirements.

The ruling dramatically curtailed the use of reverse-location search warrants by law enforcement nationwide, compelling Congress to consider new statutory frameworks for digital search techniques. Technology companies strengthened transparency reports, and public awareness of location privacy surged. The decision was widely regarded as a pivotal expansion of Fourth Amendment protections into the algorithmic age, reshaping investigative practices and fueling a broader debate on data rights.