Police officers serving a warrant or searching for a suspect hiding
inside a building could soon have a new tool for protecting
themselves and finding the "bad guy."
A prototype device called the RADAR Flashlight, developed at the
Georgia Tech Research Institute (GTRI), can detect a human's presence
through doors and walls up to 8 inches thick.
The device uses a narrow 16-degree radar beam and specialized signal
processor to discern respiration and/or movement up to three meters
behind a wall. The device can penetrate even heavy clothing to detect
respiration and movements of as little as a few millimeters.
http://unisci.com/stories/20012/0416015.htm [Monty Solomon via risks-digest Volume 21, Issue 35]
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