The U.S. Supreme Court ruled Monday that police must obtain warrants to access cellphone location data through geofence warrants, a decision that strengthens privacy protections under the Fourth Amendment. In a 6-3 ruling, the Court vacated a lower court decision in the case of Okello Chatrie, a Virginia man convicted of robbing a credit union in 2019. Police used a geofence warrant to obtain location data from Google, which helped identify Chatrie as a suspect.
Core Facts
The Court ruled that geofence warrants—used to collect location data from cellphones within a specific area during a crime—constitute a search under the Fourth Amendment. Justice Elena Kagan, writing for the majority, stated that individuals have a reasonable expectation of privacy in their cellphone location data, even when shared with third-party companies like Google. The ruling does not outright ban geofence warrants but requires law enforcement to demonstrate probable cause and obtain judicial approval before accessing such data.
Background and Context
The case arose from a 2019 bank robbery in Midlothian, Virginia, where Chatrie stole $195,000. Police initially struggled to identify the suspect but later obtained a geofence warrant from a magistrate. Google provided anonymized location data for 19 users near the crime scene, which police narrowed down to three individuals, including Chatrie. A subsequent search of Chatrie’s home uncovered nearly $100,000 in cash, a pistol, and robbery notes. Chatrie pleaded guilty but challenged the warrant’s validity, arguing it violated his Fourth Amendment rights.
Dissenting Opinion
Justice Samuel Alito, joined by Justices Clarence Thomas and Amy Coney Barrett, dissented, arguing that Chatrie had no reasonable expectation of privacy in data he voluntarily shared with Google. Alito criticized the majority’s decision as an “irresponsible escapade” that undermines law enforcement’s ability to investigate crimes.
Implications
The ruling marks the latest effort by the Supreme Court to apply Fourth Amendment protections to modern technology. In 2018, the Court ruled in Carpenter v. United States that police generally need warrants to access cellphone location records held by telecom companies. The new decision extends similar protections to geofence warrants, which have become a common investigative tool in recent years. Civil liberties advocates praised the ruling as a victory for privacy, while law enforcement officials expressed concerns about its impact on criminal investigations.
Next Steps
The Court sent the case back to the 4th U.S. Circuit Court of Appeals to determine whether the warrant used in Chatrie’s case was reasonable under the Constitution. The decision leaves open the possibility that future geofence warrants could be upheld if they meet constitutional standards.