• This undated handout photo provided by the U.S. Patent and Trademark Office shows the StingRay II, manufactured by Harris Corporation, of Melbourne, Fla., a cellular site simulator used for surveillance purposes. Federal law enforcement officials will be routinely required to get a search warrant before using secretive and intrusive cellphone-tracking technology under a new Justice Department policy announced Sept. 3, 2015. The seven-page policy, the first of its kind, is designed to create a uniform legal standard for federal law enforcement agencies using equipment known as cell-site simulators. (AP Photo/U.S. Patent and Trademark Office)

    New federal requirements on cellphone surveillance

    WASHINGTON (AP) — Federal law enforcement officials will be routinely required to get a search warrant before using secretive and intrusive cellphone-tracking technology under a new Justice Department policy announced Thursday.