Final answer:
Ammunition residue refers to the materials that remain after using ammunition, and it can be used as evidence in investigations. It is important in forensic science and criminal investigations.
Step-by-step explanation:
Ammunition residue refers to the materials that remain after using ammunition. It includes various components such as powder residue, bullet fragments, and metal casings. These residues can provide valuable forensic evidence in investigations, as they can help identify the type of firearm used or link it to a specific crime scene. For example, analyzing the residue can reveal the caliber of the bullet or the type of propellant used, which can aid in determining the range and direction of the shot. Understanding ammunition residue is important in forensic science, ballistics, and criminal investigations.