Methods of Substantiating Firearms Identification Examinations (1940) Posted on September 19, 2023September 19, 2023 By Becky Carter FBI Law Enforcement Bulletin; 9(9); 1940 (public domain) Methods of Substantiating Firearms Identification Examinations 1 file(s) 4.46 MB Download Crime Scene Investigation and Reconstruction, Firearms and Toolmarks, Historical, Photography, Video, and Imaging Technology, Trace Evidence