New Tech: Cops Could ‘Frisk’ You from 82 Feet Away
At the moment, they can scan you for guns from much less that distance but in the near future . . . From Techland:
The reason that the NYPD is so interested terahertz waves is that they pass through nonconductive materials like clothes, but can’t penetrate metal — like, say, the steel in a semi-automatic pistol. That means if you scan someone, you can look for spots where a person’s natural terahertz radiation is blocked, most likely by a metal object.
The benefits for police officers are obvious. They can essentially sit back in a specially-equipped van and scan anyone they suspect of carrying a gun from a safe distance. Right now it only works from three or four feet away, but department spokesman Paul J. Browne told the New York Times that the NYPD — in coordination with the Department of Defense — hopes to increase its range to 25 meters, or 82 feet.
Needless to say, this raises some privacy concerns.






