The science behind a shell casing: How the fingerprint of a gun can solve crimes

NIBIN is a database that contains two-dimensional and three-dimensional images of fired cartridge cases that have been gathered from crime scenes, as well as pictures of shell casings submitted by law enforcement officials who test fire guns collected into evidence.

[@bmorestance]

I like what he said, "I dont think you should fear the gun, its the person behind the gun".

[@KeepSycklids]

So basically If.u change the firing pin and the barrel out ull have a clean gun again. Because no 2 firing pins and barrels are identical right.. that's how they tell the difference by the indent on the case and marking on the bullet if they can get it.. so just change the firing pin and barrel 🙄 🤔 🤣🤣🤣 thank u for this u just showed us how to get away wit it. Dummys smh...

[@CamXantana]

If u leave shells

[@chasedilah6687]

@keep niggah yo smart😊💯

[@josephmastromarino8272]

Pueblo County judges need to put longer sentences for violent offenders

[@alexx_windycitychi558]

I’m interested so if you have for example the same exact gun okay 2 guns same make and model a Glock 19 for example both gen 4 , so every gun that’s made has different shell markings on the shell casing when it’s fired ? That makes sense but IF YOU HAVE 2 SAME EXACT GUNS SAME MODEL SAME EVERYTHING BOTH USED IN A CRIM HOW CAN THEY MAKE DIFFERENT MARKING FOR EACH GUN MADE WHEN MILLIONS OF GUNS THAT ARE THE SAME EXACT MODEL ARE SOLD EVERY DAY HOW CAN YOU COME UP WITH MILLIONS OF DIFFERENT MARKINGS WHEN THERES MILLIONS OF IDENTICAL GUNS SAME MAKE MODEL AND GENERATION? Without getting mixed up ? SO YOUR TELLING ME THE ATF CIA WHATEVER COMES UP WITH MILLIONS OF DIFFERENT TYPES OF MARKING FOR THE SAME EXACT GUN WHATEVER IT IS WITHOUT IT GETTING MIXED ? THATS INSANE I WILL NEVER UNDERSTAND HOW CAN SOMEBODY COME UP WITH HUNDREDS OF DIFFERENT MARKINGS FOR EACH GUN ? WITHOUT USING THAT MARKING EVER AGAIN BECAUSE IT WAS ALREADY USED ? How do people do that please explain IM A LEGALLY LICENSED GUN OWNER OF MANY GUNS AND THIS FASCINATES ME DO YOU GUYS KNOW HOW MANY SAME MAKE SAME MODEL SAME GENERATION GUNS ARE MADE ?

[@blabl590]

No one will answer because you're right.

[@nooneytunes3176]

That’s exactly why the murder weapon can be a big piece of evidence but not enough alone

[@nooneytunes3176]

That’s why king von beat a two year running homicide case for simply not talking lmao

[@sladekiske]

Yeah. Computers that should be so much better at this turn up 100 matches she says, then an “expert” has to eye them and get in front of a judge and repeat same line “it’s a one in a million chance this isn’t the gun” that they probably repeat at every case as the jury nods. I mean if it’s so exact why did California make it a law that the firearm manufactures had to make these markings individually distinct. And the manufactures just don’t release new guns there anymore because of it.

[@PGfendi]

47yrs

[@adaniba667]

More like you caught someone who bought the used gun 🤣🤣🤣🚮

[@coreyfazo690]

Well back to using revolvers

[@charleshetrick3152]

Orrrrr you could just polish your bolt face or scratch your bolt face after every shooting?

[@coreyfazo690]

@@charleshetrick3152 nah back to revolvers 😂

[@410_jav]

Or just wipe ya shell cases off and buy a p80 bro

[@coreyfazo690]

@@410_jav nah back to revolvers

[@forever_andre2760]

Why revolvers what they do