# 2026-06 Supreme Court Decides Chatrie On June 29, 2026, the U.S. Supreme Court held that police acquisition of Google Location History was a Fourth Amendment search, vacated the Fourth Circuit judgment, and remanded for further analysis of the warrant's particularity, probable cause, and reasonableness (primary public record, [Chatrie v. United States](../../web%20archive/2026-07-20/supremecourt.gov/chatrie-v-united-states-25-112.md)). ## Significance The case concerns cell-phone location history, not ALPR. It therefore does not directly decide any Arkansas ALPR program. Its significance is the Court's rejection of a categorical claim that precise historical location information is unprotected merely because it covers a limited time or is obtained from a third-party technology company. See [[ALPR Fourth Amendment Law Is Fact-Bound and Unsettled]].