Evidence based policing, and its cornerstone, experimental criminology, is a new paradigm in policing that seeks to minimise harm and maximise positive outcomes for the police and the public by grounding police strategy, policy and practice decisions in evidence. An exponential growth in the number of randomised controlled field trials (RCTs) in policing over the past decade to generate the 'evidence base' is fundamental to this new approach. Yet, to date, the development of scientific experimentation to establish 'what works' in policing has done little to challenge the entrenched policing mainstays -random patrol, reactive investigations and rapid response -developed in the twentieth century (Sherman, 2013).Three key developments have, however, emerged in the past decade that may signal a greater role for science in policing. First, police practitioners and policy makers have become increasingly interested in using scientific evidence to guide their policies and practice (Sherman, 2013). Second, scholars have begun to explore the disjuncture between evidence and practice and the 'translation' of science into practice (Lum, 2009;Tseng, 2010). Third, while RCTs in policing have until recently been undertaken by academics external to police organisations, and RCT results provided to police organisations as new 'knowledge products', police are increasingly leading experimental research in policing themselves (Weisburd and Neyroud, 2013).The value of policing RCTs in organisational learning (OL) may, on the one hand, lie in their ability to provide hard evidence or results of 'what works' in policing. On the other hand, RCTs may be powerful change processes that serve to generate OL in the absence of results. This is because RCTs require that alternative policing ideas or solutions are both implemented and rigorously tested in situ. Through the theoretical lens of OL, my thesis explores how a focus on the implementation processes of RCTs may be one way to address the ongoing disjuncture between a steadily growing evidence base and the persistence of mainstay practices in policing. To date, studies of research translation in policing have focused largely on the results of RCTs (Lum, 2009;Tseng, 2010). In my thesis I have, instead, examined the characteristics of the research process itself to establish how it may influence OL, innovation and change in policing. In order to explore the relationship between RCTs and OL, I adopted an integrated theoretical perspective and a mixed methods approach to address my central research questions: how do the attributes of an RCT influence OL processes through the implementation of an RCT, and how do OL processes themselves -knowledge acquisition, dissemination, interpretation and change -influence each other?I introduce OL theory, my research methods and outline my thesis in Chapter One. In Chapter Two, I provide a review of the OL literature and discuss the relevant constructs to emerge ii from my reading. I discuss the development of a heuristic model, the OL Framework...