Detection by Violet Rays (1930) Posted on August 31, 2023August 31, 2023 By Becky Carter Herman N. Goodman Police “13-13”; 5(76); 1930; with permission Detection by Violet Rays 1 file(s) 1.12 MB Download Crime Scene Investigation and Reconstruction, Fingerprints / Friction Ridge, Firearms and Toolmarks, Historical, Photography, Video, and Imaging Technology, Questioned Documents, Trace Evidence