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A practical guide for both students and practitioners in the field. Written by a nationally recognized expert in criminal investigation and police procedure, Criminal Investigation: The Art and the Science, Seventh Edition, clearly and thoughtfully explains the fundamentals of criminal investigation and forensic science as practiced by police investigators across the nation. The text explores new and emerging techniques in forensic science and how they interface with evidence collection in the field and evidence analysis in the laboratory. Lyman focuses on the steps and considerations involved in actual criminal investigations and examines the many external variables than can influence an investigator's success in the field.