This chapter argues that police involvement in research partnerships, from defining the problem through to the implementation of an intervention, can increase the practical relevance of the findings. It aims to present a logic model of an idealised effective police–researcher partnership and proposes a plausible and sensible model of how an initiative will work under certain conditions. The chapter deals with considering the links between receptivity to research and the professionalisation agenda before summarising the United Kingdom College of Policing's activities to promote a cultural shift towards an evidence-based policing profession. It reviews the documented barriers to police—researcher partnerships. The chapter describes approach to conceptualising police—researcher partnerships, before presenting a logic model that traces the process of setting up police—researcher partnerships, focusing on four essential stages that support effective partnerships. The four stages are initiation, planning, building trust, and applying knowledge.