The New York Police Department is testing new technology that can detect concealed guns from afar.
The device is small enough to fit inside a police car or on a street corner where gun violence is common, Rocco Parascandola of The NY Daily News reports.
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It works by testing for terahertz radiation, which is the natural energy that both people and inanimate objects emit.
“If something is obstructing the flow of that radiation, for example a weapon, the device will highlight that object,” NYPD Commissioner Raymond Kelly said Wednesday.
Read More at Business Insider . By Megan Rose Dickey.