The authors recommend the study guide be consulted before reading each chapter of the text, with emphasis on learning objectives and key terms and concepts. The study guide is designed to help students focus on important material as they read the text. Each chapter includes a fill-in-the-blank quiz, and several chapters have crossword puzzles to test knowledge of important terms and concepts. In addition, some detailed case scenarios and exercises are provided. The study guide parallels topics in the main text: sources and use of information, applying criminal investigation procedures, specialized criminal investigations, and specialized topics. Individual chapters deal with physical evidence, records and files, interview and interrogation, informants, surveillance, eyewitness identification, specific crimes (homicide, robbery, rape and other sex crimes, burglary, and arson), terrorism, computer and communications technology, enterprise crime (organized, economic, and white-collar), criminal investigation management, control of criminal investigations through constitutional law, evidence and effective testimony, cults and ritual crime, and raids.