Active Denial System
A non-lethal, directed energy weapon developed by the U.S. military, the Active Denial System was designed for area denial, perimeter security and crowd control. Informally, the weapon is called a ray gun or heat ray since it works by heating the surface of targets, such as the skin of targeted human subjects. The ADS was deployed in 2010 with the U.S. military in the Afghanistan War, but was withdrawn without seeing combat. On August 20th, 2010, the Los Angeles Sheriff's Department announced its intent to use the technology on prisoners in the Pitchess Detention Center. The ADS is currently only a vehicle mounted weapon, though police and U.S. marines are both working on portable versions which may make this technology more readily available and widespread.