There are some states that require that when a dealer sells a new handgun, that he must send a specimen fired cartridge case and info on the pistol to the State Police Databank- concept being that you can match a fired casing to the gun that fired it (crime investigation). THAT'S why you have the specimen. YOU live in a state that does not require the dealer to do that.
Maryland is one such state. BTW, they have spent several million $$$ on that database. They have solved NO crimess with that. All of you that live in MD- why not throw the idiots out of office?
What we have here is... failure- to communicate.