Proper interviewing and interrogation techniques can significantly affect the success of an investigation. This new edition of a bestseller explores the complex challenges of basic and advanced interview and interrogation techniques, focusing on determining behavior from body language, speech, and written statements. Principles of Kinesic Interview and Interrogation, Second Edition includes findings from the author's research project on demeanor, credibility, and interview and interrogation behavior conducted through the John Jay College of Criminal Justice and funded as part of a special project by the U.S. Government. These findings were presented at the American Psychological Association meeting, which shows the reach of the subject outside of the typical forensic and law enforcement markets.