Several police departments across America are planning to try a new device that uses focused sound, turned way up. These so-called non-lethal... Focused Sound 'Laser' for Crowd Control Crowd control ...

Mayor Ted Wheeler on Friday night directed Portland police not to use sonic warning tones to control crowds after officers activated it at the tail end of an all-night protest and signaled he’s in ...

NEW YORK (CBSNewYork)-- Thousands of commuters were trapped at Penn Station the night before the snowstorm, raising concerns they could be sitting ducks for a terrorist attack, fire, or stampede. CBS2 ...

China has developed the world's first portable sonic gun to control riots, the Chinese Academy of Sciences announced. The instrument was jointly created with the military and law enforcement and is ...

LRADs can take on many looks, but generally resemble a box amplifier or loudspeaker. Although LRADs can be used to project human voices or recordings across long distances, they are also used to emit ...

Crowd control is a constant challenge to law enforcement -- how to stop potential troublemakers without endangering those who are simply in the wrong place at the wrong time. Rubber bullets can kill, ...