Research consistently reveals that public perceptions of procedural justice and police performance are important for fostering citizens’ willingness to cooperate with police, with procedural justice being more important than police performance. Identifying factors that motivate people’s intentions to cooperate with police is the focus of the present study. Of particular interest will be how people’s affiliations with different groups in society moderate their responses to questions about their willingness to cooperate with police. The study utilizes survey data from 10,148 Australian residents and demonstrates that procedural justice, police performance, and identity each predict people’s intentions to cooperate with police. The findings also reveal that identity can moderate citizens’ concerns about procedural justice and police performance when predicting cooperation.