IC Oversight & Policy — 2026-06-30

Supreme Court Rules Geofence Warrants Constitute a Search Under the Fourth Amendment in 6-3 Decision

BLUFChatrie's conviction likely survives remand by end of 2027, while the ruling immediately subjects all law enforcement geofence requests to Fourth Amendment particularity requirements.

The Supreme Court ruled 6-3 on June 29 that geofence warrants constitute a Fourth Amendment "search," vacating the Fourth Circuit and remanding for assessment of whether the warrant at issue met the Constitution's reasonableness standard 123. Justice Kagan's majority held that individuals retain a reasonable expectation of privacy in cell phone location records held by third-party companies, extending the court's 2018 Carpenter precedent; Roberts, Sotomayor, Kavanaugh, and Jackson joined the opinion 1. The case stemmed from a 2019 Virginia bank robbery in which police served Google with a geofence warrant, narrowing 19 device accounts within 150 meters of the bank to identify Okello Chatrie, whose subsequent home search yielded nearly $100,000 in cash and a firearm 134. Alito's dissent, joined in part by Thomas and Barrett, called the ruling an "irresponsible escapade" with no practical effect on Chatrie's outcome, noting Google has since discontinued the Location History feature that made the procedure possible 13.

Analysis
The Fourth Circuit on remand is likely to find the Chatrie warrant reasonable by end of 2027, given the original three-step narrowing that reduced 19 anonymous accounts to three before investigators obtained identifying information. High confidence reflects the district court's unchallenged good-faith finding, the structural alignment between the warrant's design and Kagan's particularity framework, and the absence of a surviving theory that compels suppression. The ruling's immediate operational burden falls outside Chatrie's case: DOJ and state-and-local law enforcement must satisfy Fourth Amendment particularity requirements for commercial location aggregators from the date of decision. Gorsuch's property-theory concurrence opens a second doctrinal vector that could extend beyond geofencing to other warrant-free commercial data pipelines.

4 sources

Court rules that law enforcements use of geofence warrant was a search - SCOTUSblog
25-112 Chatrie v. United States - Supreme Court of the United States
Police must obtain a warrant when seeking sweep of cellphone location data, Supreme Court rules - CNN
Supreme Court restricts use of geofence warrants - NPR