Volume 31, Issue 4 (October 1986)
Copper and Nickel Detection on Gunshot Targets by Dithiooxamide Test
Identification of a hole or mark as one produced by a bullet and characterization of the type of bullet are often important in reconstruction of shooting incidents. Dithiooxamide is used for the visual detection of copper and nickel deposited on a bullet hole periphery by the passage of a jacketed bullet through target material. The discrimination of jacketed and nonjacketed ammunition can be made on the basis of target analysis alone. This technique may be used in conjunction with the Modified Griess Test and the sodium rhodizonate test for detection of bullet holes and muzzle-to-target distance determinations. The test for copper and nickel can also be used at a crime scene to determine the type of bullet producing a mark in a variety of target materials.