The Striagraph – A New Police Science Instrument (1957) Posted on August 11, 2023August 11, 2023 By Becky Carter John E. Davis Police; 1(2); 1956 The Striagraph - A New Police Science Instrument 1 file(s) 15.20 MB Download Crime Scene Investigation and Reconstruction, Firearms and Toolmarks, Historical, Photography, Video, and Imaging Technology, Trace Evidence