Bullet Fingerprinting Today

: The National Integrated Ballistic Information Network is a federal database used to share digital images of ballistic evidence.

: The Integrated Ballistic Identification System (IBIS) is the hardware and software used to capture these high-resolution 3D images.

: The raised parts of the rifling (lands) and the cut-out parts (grooves) leave parallel scratches on the bullet. bullet fingerprinting

: The hooks and pins that pull the spent casing out and toss it away leave distinct scratches on the rim. The Technology of Tracking

Barrel uniqueness in firearms: reliable forensic match? - Facebook : The National Integrated Ballistic Information Network is

As a bullet travels through a gun barrel, it is gripped by —spiral grooves machined into the metal to make the projectile spin for stability.

: These systems can often provide investigative leads within 24 to 48 hours by flagging potential matches across different crime scenes. Limitations and Controversies : The hooks and pins that pull the

The shell casing is also marked by various parts of the firearm's internal mechanism: