The Supreme Court issued a landmark 6-3 decision that police must obtain warrants before accessing detailed cellphone location histories from tech companies. The ruling establishes that such data collection constitutes a Fourth Amendment search, even when the information covers brief time periods or is held by third parties like Google. This reverses previous assumptions that location data was freely accessible to law enforcement.

The case originated from a 2019 Virginia robbery where police used a geofence warrant to obtain Google location data from Android phones near the crime scene. Investigators narrowed anonymized data from 19 devices to 3 identified users, leading them to Okello Chatrie, who was subsequently indicted on federal charges. Chatrie challenged the warrant's constitutionality, arguing it violated his Fourth Amendment rights.

While the Supreme Court ruled that accessing location data requires a warrant supported by probable cause, it did not definitively rule on whether the specific geofence warrant was valid. The case returns to appeals court to determine if each stage of the warrant met constitutional requirements. The decision does not ban geofence warrants entirely but establishes clear protections for detailed location records.

Technology companies beyond Google, including Apple, now face clearer legal standards for handling law enforcement requests for user location data. The ruling signals that detailed digital tracking information deserves the same constitutional protection as physical searches, potentially reshaping how police investigate crimes using digital evidence.