Nearly every study of police corruption hypothesizes that public experience of police corruption undermines the moral standing of the police. However, scarcely any studies actually test the hypothesis. My aim in this empirical study is to compare the effects of three dimensions of police corruption on perceptions of police trustworthiness, procedural justice and effectiveness. These three dimensions of corruption are personal experience, vicarious experience and subjective evaluations of police anti-corruption measures. The data come from a survey of people living in Accra, Ghana. The findings show that both vicarious experiences of corruption and satisfaction with reform measures explain assessments of police trustworthiness, procedural justice and effectiveness, but that personal experiences of police corruption do not do so.