U.S. police department uses “Stingray” surveillance equipment

A Washington state police department just south of Seattle has for years been quietly using controversial surveillance equipment that can collect records of all cellphone calls, text messages and data transfers within a half-mile radius, according to local media. The Stingray surveillance system, deployed by the Tacoma Police Department since 2009, “tricks cellphones into thinking it’s a cell tower and draws in their information,” local news website The Olympian reported Wednesday

Al Jazeera America.