The New York Police Department this week unveiled new radiation scanners capable of identifying concealed weapons from a distance. The scanners are small enough to be installed in police vans or on notoriously violent street corners, thereby allowing police to identify carriers of illegal guns without going through the traditional patdown procedure.
Developed in conjunction with the London Metropolitan Police, the devices are designed to pick up on the terahertz radiation naturally emitted by both humans and inanimate objects. Anything blocking that radiation — including a gun — will be prominently highlighted, as evidenced by the NYPD’s demonstration.





