RT Article T1 On the development and application of EMMIE: insights from the What Works Centre for Crime Reduction JF Policing and society VO 29 IS 3 SP 266 OP 282 A1 Thornton, Amy A2 Bowers, Kate 1972- A2 Sidebottom, Aiden A2 Belur, Jyoti A2 Tompson, Lisa LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/179536193X AB The What Works Centre for Crime Reduction was established in September 2013 with the aim of increasing the use of research evidence by decision-makers in policing and crime reduction. The EMMIE framework was developed to meet this aim. It encapsulates five broad categories of research evidence that are considered relevant to crime reduction, namely Effect size, Mechanism, Moderator (or context), Implementation and Economics. In this paper, we chart the origins and development of EMMIE. We also reflect on our experience of applying EMMIE both as a coding system to appraise systematic review evidence and as a framework to inform the design and conduct of systematic reviews in crime reduction. We conclude with a critique of EMMIE and with suggestions on how it might be developed and refined in the future. K1 Crime Reduction K1 EMMIE K1 Evidence-based policing K1 systematic review DO 10.1080/10439463.2018.1539483