In a major victory for the Justice Department over privacy advocates, a federal appeals court ruled Tuesday that government agencies can collect records showing the location of an individual's cell phone without obtaining a warrant.
The 2-1 ruling by the 5th Circuit Court of Appeals in New Orleans upheld the Justice Department's argument that "historical" records showing the location of cell phones, gleaned from cell site location towers, are not protected by the Fourth Amendment.
A key basis for the ruling: The use of cell phones is "entirely voluntarily" and therefore individuals who use them have forfeited the right to constitutional protection for records showing where they have been used, the court held.
"The Government does not require a member of the public to own or carry a phone," wrote U.S. Judge Edith Brown Clement in an opinion joined by U.S. Judge Dennis Reavley. The opinion continued: "Because a cell phone user makes a choice to get a phone, to select a particular service provider, and to make a call, and because he knows that call conveys cell site information ... he voluntarily conveys his cell site data each time he makes a call."