Supreme Court Weighs Limits on Geofence Warrants in Privacy Case

TL;DR: The Supreme Court is reviewing whether geofence warrants that sweep up location data from thousands of phones constitute unconstitutional, suspicion‑less searches. A ruling by June 2025 could set new limits on how police use digital surveillance.

The case, Chatrie v. United States, stems from a 2019 robbery in Virginia where investigators used a geofence warrant — an investigative tool that collects location data from thousands of phones inside a set area — to gather location points from every phone nearby. Police then narrowed the data to identify suspect Okello Chatrie, whom prosecutors later convicted. Geofence warrants have become a common tool in major investigations across the country, prompting worries about privacy, free speech, and government overreach.

According to a 2024 report by the Electronic Frontier Foundation, law enforcement agencies filed more than 1,200 geofence warrant requests in the first nine months of that year. The same study noted a steady rise in such requests since 2020, reflecting growing reliance on location‑based surveillance.

Christin Vasquez, counsel at Dhillon Law Group, told the Court that the matter sits at the intersection of rapidly evolving technology and the Constitution's oldest protections. She acknowledged that law enforcement needs effective tools but stressed that the Fourth Amendment bars broad, suspicion‑less searches.

Vasquez questioned whether the public accepts the government collecting data on everyone to identify a few suspects. The justices heard oral arguments on April 22, 2025, and signaled a split view on the constitutionality of the practice.

If the Court sides with Vasquez's concerns, it could require warrants to be more narrowly tailored, limiting the amount of location data police can collect at once. Conversely, a decision upholding the current use would affirm geofence warrants as a permissible investigative method, likely encouraging their broader adoption. Either outcome will influence how tech companies respond to law‑enforcement requests for user data.

Experts expect the Court's opinion by the end of June 2025; observers will monitor its language for any new standards on digital surveillance and any subsequent legislative or regulatory responses.