Primer Gunshot Residue Detection from the Firing of a Black Powder Revolver

摘要

A study was conducted to determine the potential for being able to identify primer gunshot residue (PGSR) within the substantial quantities of particulate residues produced during the firing of a revolver using Black Powder propellant and a percussion cap primer.Samples of gunshot residue (GSR) were collected from the shooter's hands,from surfaces to the side of the shooter,from surfaces near the muzzle of the weapon,and from various locations on the weapon itself (both inside and outside).It was found to be relatively easy to identify PGSR from the hand of the shooter,from surfaces to the side of the weapon,and from most locations on the weapon.However,using the methods of this study,no PGSR was identified within the large amount of Black Powder residue projected out the muzzle of the weapon and on the inside of its barrel.