I think there are some localities that will keep a fired case on file, in case a firearm is used in a crime. If that was the case, you would have to register the weapon with the authorities, and they would keep the fired case.
I read somewhere on the net that New York spends something like 10 million dollars a year on their fired casing database. So, in total it's probably up to 60 or 70 million dollars spent and NOT ONE SINGLE prosecution.
A forum community dedicated to Springfield Armory XD and XD-M series firearm owners and enthusiasts. Come join the discussion about optics, gunsmithing, styles, reviews, accessories, classifieds, and more!