Abstract
The criminal justice system (CJS) is wide-ranging and involves numerous components and professionals. ‘Introducing criminal justice’ outlines the objectives of criminal justice; how crime can be punished and prevented; the key principles of criminal justice; the two contrasting models of criminal justice—the adversarial model and the inquisitorial model; the various components of the CJS—police, prosecution, judiciary, prisons, probation, and parole; the limits on the power of the CJS; discretion in criminal justice decision-making; the limits on the effectiveness of criminal justice; and criminal injustice through wrongful convictions, wrongful acquittals, over or under punishment, or discrimination.
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