To master the law, you must first master the art of the Psychology of the law. Law is in its fullest sense a game of psychology, a good lawyer must be able to discern ahead of his case, must think ahead, above and in jest, law is a collection of an equilibrium of unfathomable knowledge which at beast is a game of psychology. You can never beat your opponent in court or clearly off set a witness in cross-examination without grasping the Psychology of law. Law and psychology are two separate disciplines but have so much in common. While psychology’s goal is to understand behavior and law’s goal is to regulate it, both fields make assumptions about what causes people to act the way they do. The book provides an introduction to the study of psychology as it relates to the law. The history of psychology’s relationship to the law, the theories and models of justice and their relationship to psychology. We look at the different branches of psychology, the relevance of psychology in law, the role of psychologists in the legal system, the criticism of psychology, the future directions in psychology and law in Uganda. It will lead to a better understanding of criminal and civil issues that involve psychological perspectives including a focus on psychological experts in court, the concept of cross examination that is examination in chief, cross examination and re-examination there in, the ideology of working around the case in terms of demeanor, establishing relevance of facts and getting information from a witness, child custody, law enforcement, victimology, violent offenders, risk assessments and treatment of forensic clinical populations. The book focus on the application of psychological theory, methods and data to various procedures and issues in the legal system including deception, eye witness identifications ,alibi generation and corroboration, repressed and recovered memories and assessors’ selection and decision making and also the methodological issues associated with conducting research in psychology and law.