L.A. Jail Uses 'Assault Intervention Device' on Inmates

Officials at a Los Angeles County jail plan to test out an invisible heat-beam weapon originally developed by the military as a way to subdue brawling inmates by making them feel "intolerable heat."

The technology, called an Assault Intervention Device, is a non lethal-weapon developed by Raytheon Company. It originally was scaled down for use at the jail.

The device "emits a focused beam of wave energy that travels at the speed of light and produces an intolerable heating sensation that causes targeted individuals to flee. The sensation immediately ceases when the targeted individual moves away from the beam," according to Raytheon's website.

Deputies have tested the device, which is controlled by a jail officer using a joystick.

"We believe that technology can help solve problems facing the corrections community, including addressing issues of inmate violence," Sheriff Lee Baca said during a news conference. "The Assault Intervention Device appears uniquely suited to address some of the more difficult inmate violence issues without the drawbacks of tools currently available to us."