<prompt> A case of murder with gunshot is repoed. A metal bullet is recovered from the body. Primary and Secondary markings on a metal bullet can be used forIdentification of weaponTo know the range of firingSeverity of tissue damageTo known tome of crime  <response>: A i.e. Identification of weapon - Primary markings class characteristics and secondary markings metallic fouling, individual or accidental characteristics on a bullet can be used for identification of weaponQ. - Bullet is picked up with handsQ. Gunshot residue on hands can be detected by Dermal nitrate testQ. 