| Summary: | This completely revised edition is a guide and manual for the law-enforcement officer. Combining up-to-date, practical American police experience and latest scientific methods and techniques of criminal investigation and detection, it affords an authoritative coverage of every important phase of police science. In addition to revisions in text and illustrations, this edition includes advances made possible by recent psychological findings: in the evaluation of eyewitness testimony, some causes of drug addiction, the behavior characteristics of various criminal types, the lie detector and how it works. New strides in science techniques are covered in relation to such subjects as infrared, X-ray, and color photography; serology; the detection of fraudulent paintings. This new edition is packed with up-to-date information and of vital interest to sociologists, writers, and every-one interested in criminal investigation. Its detailed, accurate explanations, numerous illustrations and diagrams, glossary of terms in connection with firearms, and chapter of questions to test understanding of the material, make it unique and invaluable in its field.
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