Re:Federal cops gets pulled over by TN cops, car illegally s...
by mahyarm on Thursday January 21, 2016 @02:15AM
(#10943839)
Those are things similar to a mass spectrograms. The tissue picks up particles, and is then analyzed by the machine to create a mass spectrogram of the napkin. If it contains masses similar to explosive powder residues, then you're in trouble.
I was "digitally sniffed" for explosives once at an airport in Florida about 3 years ago.
They took a piece of what looked like tissue (probably an odorless control) and rubbed it inside my backpack.
They then placed that "tissue" into a very large machine (half the size of the man performing the procedure) which I assume smelled it for explosives.
After standing there for about 30 seconds staring at the machine, I was told I was free to proceed into the secure waiting area.