I just ran across this article.
https://www.rawstory.com/armed-at-di...d-guns-during/
In it there is reference to their security measures which led to this device.
https://evolvtechnology.com/
I had read about similar measures before but have never found much info. The Evolv site has some video of the device in action with G26 and a shotgun barrel in a backpack but not a lot of detail on how it actually works other than AI and possibly thermal imager. I'm am curious about how the thing functions and if anyone has any further info or experience in it's use, maybe at their workplace etc? Obviously don't be stupid or careless but concealed meaning concealed may not work in this case. I would guess it is expensive and uncommon but who knows for how long.