Australian researchers have recently applied procedural justice theory to examine the relationship between police practices and public satisfaction and confidence in the police service. The four basic public expectations of police that contribute to the procedural fairness effect are outlined: trust, respectful treatment, neutrality, and voice. Translating these key relational variables into action can be challenging. Although the group values relational model provides the best account for these data, reliance on this model in Australian studies is somewhat haphazard: many studies fail to mention any theoretical framework; in others, the key elements of procedural justice are poorly distinguished. Achieving clarity and consistency regarding these concepts as they apply to policing is the first step towards applying and testing these theories in practice. This review clarifies these concepts. The significance of practices that focus on trustworthiness and respectful treatment is emphasized. A systematic approach to test the group values model is recommended, using validated scales and labels that conform with commonly applied definitions of those elements. In this way, advances in research on this topic will be more transparent and accessible to practitioners, researchers, and end users.