Many studies have looked at the public’s trust in the police, but very few have examined police trust in the public. Based on Mayer, Davis, and Schoorman’s model of trust, we conducted two studies. The first study created scales measuring the antecedents of trust and assessed police trust in the public based on a survey of 990 police officers from across the United States. The second study used the trust measures developed in the first study, as well as supervisors’ evaluations and archival performance data, in a study of the job performance of 135 police officers. We found that officers who had greater trust in the public engaged in more proactive policing and made more arrests. We discuss the implications of these findings, including what they mean for police officers and the communities they serve.