Microdots for Firearms
I was talking with a colleague today about the raids on the Mongols clubhouses, apparently it resulted in the seizure of dozens of illegal firearms that are rendered untraceable by the bikers, they remove serial numbers and swap parts around. But the colleague posed this question to me, and I couldn't give him a reasonable answer.
Why can't firearms be covered in microdots like new cars are?
On many new vehicles RF microdots get dispersed by the million in paints, adhesives and rubbers on many new vehicles and are almost impossible to eliminate completely. They are tiny the size of a grain of dust, and the volume and scale means it's effectively impossible to remove them all.
It seems like a reasonable idea?