Forensic psychology, sometimes called legal psychology, had its beginnings in the late 1800s. A Harvard professor, Professor Munsterberg, introduced the idea of ​​psychology and law with his book On the Witness Stand in 1908. Since the creation of the idea of ​​psychology and law, there have been supporters, even if these have spoken out against the theories. proposed by Munsterberg, along with other scientists, theorists and psychologists who believed that forensic psychology had no right to be related to legal topics. This literature review will attempt to identify scientific articles that trace the origins and movement that led forensic psychology to become a specialty within the field of psychology. I will also attempt to explain what forensic psychology is and the role it plays in the legal system. In an article titled What Is Forensic Psychology, Anyway?, John Brigham attempts to explain the beginnings of psychology and law; Forensic psychology. Brigham explains that “forensic psychology involves the interaction of psychology and the legal process” (Brigham 274). Brigham further highlights a historical case and the precedent set by the House of Lords through the introduction of the McNaughten rule, which translates: "To establish an insanity defense it must be clearly proven that at the time of the commission of the act, the accused suffered from such a defect of reason, due to mental illness, that he did not know the nature and quality of the act he was committing, or he knew it, that he didn't know he was doing the wrong thing. (Finkel, 1988, p21; Brigham p275). Brigham explains that the concept of introducing psychology into the field of law......middle of article......vitz, M. (2009). Forensic psychology: Emerging topics and expanding roles. American Journal of Clinical Hypnosis, 52(1), 71-71-72.Greenfield, D. (2007). Introduction to forensic psychology. issues and controversies in crime and justice. Journal of Psychiatry & Law, 35(2), 201-201-204,105-106. Perri, F. and Lichtenwald, T. (2009). WHEN WORLDS COLLIDE: criminal investigation analysis, forensic psychology and the Timothy Masters case. Forensic Pathologist, 18(2), 52-52-69. Quinsey, V. (2009). Are we there yet? stasis and progress in forensic psychology. Canadian Psychology, 50(1), 15-15-21. Roesch, R. and Rogers, B. (2011). The Cambridge Handbook of Forensic Psychology. Canadian Psychology, 52(3), 242-242-243. Spellman, B. and Busey, T. (2010). EMERGING TRENDS IN PSYCHOLOGY AND LAW RESEARCH: An editorial overview. Bulletin and psychonomic review, 17(2), 141-141-2.