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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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Answer: Mapp v. Ohio
Explanation: Mapp v. Ohio is a supreme court that ruled the exclusionary rule, which prevents prosecutors from using evidence in court that was obtained by violating the Fourth Amendment to the U.S. Constitution. On June 19, 1961, the supreme court ruled that evidence obtained in violation of the Fourth Amendment to the U.S. Constitution, which prohibits “unreasonable searches and seizures,” is inadmissible in state courts.
I believe the answer is stem cells