This well-established text brings together the authorsrs" more than 50 years of investigation experience and focuses on the fundamentals of inquiry and each element of investigation. The text reflects the most recent investigative techniques and technology and features real-life case studies to help students develop their ability to analyze, evaluate, and reason. Its approach is concise and manageable and this edition includes a new chapter on rules of evidence, a new chapter on terrorism, new case studies and new review questions to reinforce each concept.