Abstract: A spent cartridge case exhibits characteristic markings (firearm fingerprint) that can be used to identify the type, and possibly make, of weapon in which the cartridge was fired. This paper details research into the use of discriminant analysis for the purpose of matching spent cartridge cases to specific make and model of firearms. A fired projectile can also be analyzed by measuring the class characteristics such as land mark, groove, mar, and twist ratio. A personal computer (PC) based prototype software application called FireBall will also be described in detail.!9
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