United States v. Quartavious Davis

July 18, 2013

In 2010, the government obtained four people's cell phone location records over a 67-day period in a criminal investigation in Florida, without a warrant.

For one suspect, Quartavious Davis, police got 11,606 location records—an average of 173 location points each day. After Mr. Davis was convicted at trial based substantially on the cell phone location evidence, he appealed to the Eleventh Circuit Court of Appeals. The ACLU, along with the ACLU of Florida, Center for Democracy & Technology, Electronic Frontier Foundation, and National Association of Criminal Defense Lawyers, has filed an amicus brief arguing that the government violated the Fourth Amendment when it obtained Mr. Davis’s location records from his wireless carrier without a warrant.

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