![]() ![]() The BrassTRAX system enters cartridge cases, while the BulletTRAX system enters projectiles. ![]() Test fires from submitted firearms, as well as cartridge cases and projectiles from crime scenes, are evaluated for entry into IBIS. The Firearms and Toolmarks Unit houses both BrassTRAX and BulletTRAX systems, capable of accessing the National Integrated Ballistic Information Network (NIBIN). Integrated Ballistics Identification System (IBIS) If no firearm is recovered, but a bullet is, a list of firearms that could have possibly fired that item can be generated by measuring the general rifling characteristics of the bullet and searching the FBI’s GRC Database. General Rifling Characteristics Database Search These markings are used to identify if a bullet or cartridge case was fired by a specific firearm or if multiple bullets or cartridge cases were fired by the same unknown firearm if no firearm is recovered. The Firearms and Toolmarks Unit is able to verify if a firearm is capable of discharge and report such findings.ĭuring the firing process, microscopic markings are left on the bullet and cartridge case by the firearm. In many investigations, knowing if a firearm is capable of discharge is an important question to answer. ![]()
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