This new edition of  Swanson's Criminal Investigation, 12e is widely recognized as the most accurate and comprehensive text in the field, this practical, step-by-step introduction to criminal investigation gives students a logical framework for understanding the investigative process. Major sections cover current issues such as environmental crime, the looting of archaeological sites, videotaping of crime scenes, street gangs, and drugs. Case studies throughout the text emphasize the applied technique of criminal investigation. Graphs, charts, and compelling photographs found throughout the text depict the practical aspects of investigation and help to clarify difficult scientific concepts.