Fairness and equity are key concerns in modern liberal democracies. In step with this general trend, academics and practitioners have long been concerned with the fairness of procedures utilized by the criminal justice system. Definitions vary, but procedural justice is loosely defined as fair treatment and fair decision-making by authorities. In the criminal justice system, the procedural justice of authorities such as police officers, judicial officers, and correctional officers is evaluated by members of the public. Procedural justice in the criminal justice system is viewed as an end in and of itself, but it is also an opportunity to yield various outcomes including legitimacy, public compliance with the law, cooperation with criminal justice officials, and satisfaction with criminal justice proceedings and outcomes.