The least significant fact about guns is that they can be used to kill. You can always tell a pig- or soldier-writer because they only focus on the action. That much is true; cops and soldiers just have to pull the trigger.
More important is how guns are tracked and what evidence they leave behind. Because THAT is what gets you caught.
Gun manufacturers are a part of the American police state. They cooperate in such a way as to make their merchandise more identifiable and traceable. Hi-Point knows that criminals like their cheap, disposable guns; that’s why Hi-Point presses the serial number on several areas, not just where one can see.
A partial listing of firearm evidence:
1) Serial Number
Like the VIN and CarFax, the gun’s SN can be used to trace where it was bought, where it was serviced, and who owned it.
2) Bullet Lots
Let us say a killer shoots a vic. One shot, one bullet. The ME does an autopsy and pulls out the slug.
We find a suspect and execute a SW on his house. We find a box of ammunition. We send it to the ballistics unit and they tell us the bullet came from that lot…we have our killer.
Individual bullets can be matched to lots. Chemical analysis and metallurgy provides the make.
3) Ejector and Breech Marks
These will be left on the shell casings, not the slug. These can be “individualized” and used to match a casing to the gun that fired it. Someone who just lets casings fly off is leaving alot of evidence. All casings ever left by that gun will have similar marks.
4) Lands and Grooves
…not just to impart spin to a bullet and make it more accurate.
They also match the barrel to the bullet. There are tables called GRC or general rifling characteristics. These match the number of lands and groves with its right or left hand twist to a particular model of gun.
For example, we work a crime scene. The ME digs a bullet out of the corpse. It may be a 25 caliber slug with 8 lands and grooves with a right hand twist. We look into the GRC database and find that 4 models can fire that bullet.
If the case is big enough, we may chase down all owners of those models within a 50 mile radius. If you own that model weapon, I can call the ATF and find out. Then, I can get a SW for that gun.
To the public it’s magic. To those who know, it’s the American police state in action.
5) Gunshot Residue
When a gun is fired a cloud of residues is created. This will get on the shooter’s hands, clothes and face. If the shooter is caught within say 48 hours, the police will use a GSR test to determine if he fired a gun recently.
If the vic was close enough to the shooter, he’ll have some GSR on him also. Picture that cloud of smoke/residues exiting the gun, small at first, then expanding, and contracting.
That will do as an introduction – and any article is just an introduction. Those who truly need this information would not stake their future and their freedom on one writing.
Guns are very dangerous…for the shooter. Every bullet that gun ever fired, needs to be accounted for and destroyed if possible.
Someone who writes about guns, without writing about the evidence they produce, is working for THEM. Remember that.