To manage these vast amounts of data, law enforcement uses specialized databases and imaging systems.
: The Integrated Ballistic Identification System (IBIS) is the hardware and software used to capture these high-resolution 3D images.
: These systems can often provide investigative leads within 24 to 48 hours by flagging potential matches across different crime scenes. Limitations and Controversies bullet fingerprinting
When a gun is fired, several mechanical actions leave distinct impressions on the ammunition. These marks are primarily categorized into two types: 1. Striation Marks (on the bullet)
: The hooks and pins that pull the spent casing out and toss it away leave distinct scratches on the rim. The Technology of Tracking To manage these vast amounts of data, law
: When the gun fires, the casing is forced backward against the breech face, transferring its texture to the metal.
: The raised parts of the rifling (lands) and the cut-out parts (grooves) leave parallel scratches on the bullet. Limitations and Controversies When a gun is fired,
The shell casing is also marked by various parts of the firearm's internal mechanism: