Designed for university students in the burgeoning field of intelligence studies and professional training classes, Counterintelligence Theory and Practice provides all the elements required for a successful counterintelligence operation. Exploring issues relating to national security, military, law enforcement, as well as corporate private affairs, Hank Prunckun uses his experience as a professional to explain both the theoretical basis and practical application for real counterintelligence craft. Each chapter contains key words and phrases and a number of study questions and learning activities that make the book a comprehensive tool for learning how to be a counterintelligence professional.