Forensic Psychology is the application of the theories of psychology to law and the legal system. Issues of violence and its impact on individuals and/or groups delineate the main and central concerns in Forensics within the adult, juvenile, civil, and family domains. Forensic psychologists provide advice to legislators, judges, correctional officers, lawyers, and the police. They are called upon, for example, to serve as an expert witness, diagnose and teat incarcerated and probationed offenders, and screen and evaluate personnel in the law enforcement and judicial systems. Forensics encompasses a wide range of academic orientation. Synonyms for Forensic psychologists include criminal psychologist, correctional psychologists, police psychologists, and social-legal psychologists. However, Forensics is considered a single discipline. Just as one social psychologist may focus on group behavior while another may focus on interpersonal interaction, Forensic Psychology is best considered as a large all-encompassing field, for which correctional, police, and legal psychology are all sub-disciplines. 2). Erich Fromm defines benign aggression as a brief reaction to protect us from danger. In contrast, malignant aggression is hurting others purely for the sadistic pleasure. Fromm believes people feel helplessly compelled to conform to the rules of society, at work, and to authority everywhere. This lack of freedom to make decisions and the inability to find meaning and love in one's life causes resentment and sometimes malignant, sadistic aggression. How and where does this hostility show itself? Some people get pleasure from hurting, killing, and destroying; Hitler was a prime example: he killed 15 to 20 million unarmed Poles, Russians, and Jews. He reportedly planned to destroy his own country before surrendering. Fromm describes Hitler's life and says, "there are hundreds of Hitlers among us who would come forth if their historical hour ...