This manual was designed to train State and local law enforcement officials for intervention in and investigation of child abuse and neglect cases. It explains the rules of law enforcement, the nature of team investigations, the investigative process, relationships with other disciplines, interview techniques, and specialized types of investigations. Topics include risk assessment, removal from home, interviewing tools, cross-cultural investigations, foster care, investigation of child deaths, monitoring telephone or personal conversations, polygraph evaluations, and arrest issues. A glossary of terms and a selected bibliography are provided. 1 figure and 54 notes.