Forensic psychology is the intersection between psychology and the justice system. An important aspect of forensic psychology is the ability to testify in court as an expert the psychology of criminal conduct pdf, reformulating psychological findings into the legal language of the courtroom, providing information to legal personnel in a way that can be understood.
Further, in order to be a credible witness, the forensic psychologist must understand the philosophy, rules, and standards of the judicial system. Primarily, they must understand the adversarial system. There are also rules about hearsay evidence and most importantly, the exclusionary rule.
Lack of a firm grasp of these procedures will result in the forensic psychologist losing credibility in the courtroom. A forensic psychologist can be trained in clinical, social, organizational, or any other branch of psychology. Generally, a forensic psychologist is designated as an expert in a specific field of study. The number of areas of expertise in which a forensic psychologist qualifies as an expert increases with experience and reputation.