This new edition of Criminal Investigation presents the basic principles of criminal investigation, including current investigative procedures used in the handling of crime scenes, interviewing and interrogating suspects and witnesses, gathering and preserving evidence, conducting surveillance, writing reports, establishing modus operandi, and using technical resources. It also covers the prevention and suppression of crimes and the apprehension of criminals. Written in a practical, down-to-earth style, it gives special attention to helping students understand the legal aspects of collecting and processing evidence to ensure that their work stands up in court.