F orensic psychology is a subfield of psychology defined by the American Psychological Association (APA; 2013) in "Specialty Guidelines for Forensic Psychology" as "professional practice by any psychologist working within any subdiscipline of psychology (e.g., clinical, developmental, social, cognitive) when applying the scientific, technical, or specialized knowledge of psychology to the law to assist in addressing legal, contractual, and administrative matters" (p. 7). Forensic psychology helps judicial, administrative, and educational systems make decisions regarding questions when an interface with psychology is involved with legal issues (Neal, 2018). Generally, the psychologist assists to inform adjudication decisions. In this chapter, we use a competency-based approach to identify the requisite knowledge, skills, and attitudes for practice. Some issues addressed in this chapter concern the differentiation of forensic consultation from clinical or administrative and how forensic consultation differs from activities such as supervision, administration, direct care, or all of them. After a review of the literature, we conclude that almost all forensic practice is consultative and should only be conducted by those qualified to do so by training, education, experience, or all three. This conclusion may seem extreme to some; we now explain why we believe this to be the case.