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The Supreme Court is set to hear arguments in United States v. Chatrie, a case that will determine whether police can legally use geofencing warrants to identify suspects. Geofencing allows law enforcement to draw a virtual perimeter around a crime scene and request that tech companies search their location databases for any devices present during a specific timeframe. The practice has become increasingly common, with Google receiving 11,500 such warrants in 2020 alone, according to the Hofstra Law Review.
The case pits two competing legal interpretations against each other. The Fourth Circuit Court of Appeals ruled that geofence warrants don't violate the Fourth Amendment, while the Fifth Circuit reached the opposite conclusion, determining that individuals have a reasonable expectation of privacy in their location history. This split decision prompted the Supreme Court to intervene and establish a national standard that will affect how Atlanta and other jurisdictions conduct digital investigations.
Privacy advocates and criminal defense lawyers argue that geofencing enables broad, dragnet surveillance that can implicate innocent people in criminal investigations. According to the National Association of Criminal Defense Lawyers, the practice amounts to a "general warrant" devoid of probable cause and particularity. The government, meanwhile, is expected to contend that users who voluntarily enable location tracking waive privacy protections. Tech companies like Google have already begun limiting geofencing's reach by storing location data on individual devices rather than centralized servers.
The Supreme Court's decision, expected this summer, will extend beyond geofencing alone. Legal experts warn the ruling could shape the legality of other digital investigative tools, including reverse-keyword warrants and data requests targeting chatbot interactions. For Atlanta-based law enforcement agencies and the tech companies they partner with, the decision will establish clear guidelines for how digital privacy intersects with public safety in the modern era.
