[Still Thinking]

This is not as it is depicted on the forensic shows. In practice, it is very, very difficult to do.

Yeah, I love how the guy looks at a recovered round under a microscope and confidently pronounced that it was fired form a Glock, manufactured in April or May of 2004 on the north end of the shop, with black grips. Should me more like "This was fired from a pistol with polygonal rifling, so maybe a Glock."

I recall that New York required ballistic examples of a case from all the pistols sold in New York for about 10 years. As I remember, they never solved *one* case in that entire time with that information. They finally gave up on it as being a waste of time.

I thought they solved ONE, or maybe I'm thinking of some other registration scheme.

[marktwain]

You might be thinking of the Canadian pistol registration system.

I think that they claim it was used to solve one violent crime in the last 70 years, but some dispute even that one.

Registration has virtually no usefulness in fighting crime. It is certainly not cost effective.