Forensic psychology is the study of the integration of psychology and the law. It is a new blend of two old professions—psychology, which is the study of human behavior, and law, which is the study of how people rule themselves in social situations. Psychologists generally use the scientific method of induction to understand human behavior while lawyers use reason or the deductive method of inquiry to understand legal issues. Each discipline uses different methods to interpret and solve problems. Like the old saying that “two heads are better than one,” we believe that using the knowledge, information, and techniques of both disciplines to better understand simple and complex problems is the best way to find “truth.” Table 1.1 gives a comparison of how truth is discerned using the tools found in the study of law and in psychology.