In a decisive ruling on Monday, the Supreme Court determined that the police’s use of a geofence warrant constitutes a “search” under the Fourth Amendment. This ruling stemmed from the case of Chatrie v. United States, where such a warrant was employed to convict Okello Chatrie of a bank heist that took place in Virginia in 2019.
The Court’s 6-3 decision highlighted an individual’s reasonable expectation of privacy concerning their cellphone’s location data, even when such data is held by a third-party tech company. Justice Elena Kagan, penning the majority opinion, stressed that such an intrusion by the police represents a substantial breach of constitutionally protected privacy interests. The case has been remanded to a lower court to assess the reasonableness of the search, as mandated by the Fourth Amendment.
Justice Samuel Alito, with Justices Clarence Thomas and Amy Coney Barrett partially concurring in dissent, warned that this ruling could significantly reshape existing Fourth Amendment doctrine without directly changing the outcome for Chatrie. He noted the broader implications for law enforcement’s reliance on digital data.
The incident under scrutiny involved the issuance of a geofence warrant to Google, compelling them to disclose location data for devices near the crime scene during the robbery timeframe. The data was disclosed in stages, culminating in the identification of Chatrie’s device as present at the scene. Subsequent searches of his property uncovered material evidence linking him to the crime.
Initially convicted based on this evidence, Chatrie argued that the warrant lacked the necessary probable cause and specificity. Although a federal district judge acknowledged these deficiencies, the evidence was permitted under the good faith exception, as law enforcement had acted without malice or violation of precedent.
The Fourth Circuit Court of Appeals upheld the conviction, arguing that Chatrie had no reasonable expectation of privacy over the data shared with Google. With the Supreme Court’s recent decision, however, the judicial landscape surrounding digital privacy and law enforcement practices appears poised for further interpretation. For more detailed analysis and implications of this ruling, visit here.