Supreme Court to Decide if Geofence Warrants Violate Fourth Amendment Privacy Rights

Supreme Court Takes Up Landmark Geofence Warrant Case

The U.S. Supreme Court is set to hear arguments in United States v. Chatrie, a pivotal case that will determine whether geofence warrants—a tool used by law enforcement to mine location history data—violate the Fourth Amendment’s protections against unreasonable searches and seizures.

What Are Geofence Warrants?

A geofence warrant allows authorities to draw a virtual perimeter around a crime scene and obtain a warrant requiring tech companies like Google to search their location data for anyone within that area during a specified time frame. This method has been used to identify suspects in criminal investigations.

In the case before the Supreme Court, Okello Chatrie, who is serving a 12-year prison sentence for robbing a credit union near Richmond, Virginia, was identified using a geofence warrant. Chatrie’s legal team argues the warrant was unconstitutional, while the Fourth Circuit U.S. District Court upheld its legality.

Conflicting Rulings Spark Supreme Court Review

The Supreme Court’s intervention follows conflicting rulings in similar cases:

• Fourth Circuit (U.S. v. Chatrie): Ruled that geofence warrants yielding two hours of precise location data do not constitute a Fourth Amendment search and do not require probable cause.
• Fifth Circuit (U.S. v. Jenkins): Held that geofence warrants violate the Fourth Amendment, as users have a reasonable expectation of privacy in their location history data, regardless of probable cause.

The Supreme Court will now weigh whether the execution of geofence warrants violates the Fourth Amendment, with both sides presenting starkly different interpretations of privacy rights in the digital age.

Government vs. Defense Arguments

The government is expected to argue that because cell phone users voluntarily opted into location history tracking, they waived any reasonable expectation of privacy. Chatrie’s legal team, however, contends that geofence warrants are overly broad and amount to unreasonable searches of large numbers of innocent people.

“Geofence warrants are an unprecedented increase in the government’s ability to locate individuals without substantial investigation or investment of resources. [They] are general warrants—which are prohibited by the Fourth Amendment—because they are devoid of probable cause and particularity.”

Privacy Advocates and Tech Industry Respond

Privacy advocates have sided with Chatrie, arguing that geofence warrants infringe on constitutional rights. Google, a key player in these cases, has already taken steps to limit geofencing’s reach. Historically, the company stored users’ location history data on cloud servers, but in July 2023, it shifted this data to individual devices, reducing the scope of potential geofence warrant requests.

Why This Case Matters for Digital Privacy

The Supreme Court’s decision in U.S. v. Chatrie could set a precedent for how law enforcement accesses digital data in criminal investigations. The outcome will determine whether geofence warrants remain a viable tool for authorities or whether they are deemed unconstitutional, reshaping privacy protections in an increasingly digital world.