During 1960s and 1970s in administration of President Lyndon Johnson, criminal justice became an academic subject.
Criminal justice is the interdisciplinary academic study of police, criminal courts, correctional institutions (for example, prisons), and juvenile justice agencies, as well as the agents who work within these institutions. Criminal justice differs from criminal law, which defines the specific behaviors that are prohibited and punishable by law, and criminology, which is the scientific study of the nonlegal aspects of crime and delinquency, such as their causes, correction, and prevention. In the second half of the twentieth century, the field of criminal justice emerged in the United States.
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