The aim of this paper is to explore if, when, how, and why “religion” is a topic in police research and analyze if police research frames religion as a resource or a problem. Theoretically we investigate if “religion” in police research is perceived as a potential asset that the police can use for building trust and dialogue with various religious communities and citizens, or is religion perceived as a problem or even a danger that should be controlled, and under what circumstances. Are there changes over time and place, and can these changes be related to the role and function religion plays in different social settings? To what extent does it matter to the police if religion is an asset or a potential problem, and do police tactics or social attitudes towards religion matter when it comes to how police officers view religion? We expect to find different attitudes in different countries, and different attitudes might be explained by the various roles religion and religiosity takes in different social settings. To fulfil the aim of the study, we provide a systematic literature review of the existing police research that is related to “religion” in three databases, namely Scopus; Web of Science and Criminology collection. By this procedure we can present an overview to the existing literature and research on the nexus between religion and policing. Furthermore, we are can also present trends and developments over time and place as well as point to future research. Besides an interest in research patterns and trends over time, the findings can also be of importance for the training of future police officers who will work in a multicultural and multireligious society.