Practice Advisory: Chatrie v. United States, What Defense Counsel Need to Know

On June 29, 2026, the United States Supreme Court decided Chatrie v. United States, holding that the government’s use of a “geofence warrant” to obtain Google Location History data is a Fourth Amendment search. This advisory summarizes the decision and its potential implications, identifying new arguments the ruling opens up across a range of surveillance technologies. NACDL’s Fourth Amendment Center litigated Chatrie and is available to assist defense lawyers in applying it.

 

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