U. S. Army Technical Manuals Secret Army investigation procedures. A reprint of six US Army Technical manuals bound in one convenient volume. Included are :1. Polygraph Examinations2. Fingerprinting3. Casts and Molds4. Techniques of Surveillance5. Crimes involving Poisons6. Investigations of Assault Homicides and Suicides.This manual is full of shocking information. 8.5 x 11 , softcover, 92 pages.