Ross Homel, Ph.D. Foundation Professor of Criminology and Criminal Justice Griffith University Brisbane, Australia “Implementing Crime Prevention: Good Governance and a Science of Implementation”* Presentation to the Penn State Prevention Research Center and the Justice Center for Research Although internationally there has been progress in the adoption by governments of prevention policies for crime, substance misuse, and related problems, such policies remain generally marginalized and few resources are devoted to the widespread implementation of evidence-based or researchinformed approaches. The argument of this paper is that the implementation process needs to be placed onto a proper scientific footing, and that a critical aspect of this—not yet well recognized in the nascent implementation science literature—is the development of comprehensive governance systems, many of which will need to be designed to support effective implementation through multi-agency partnerships in complex community settings. Examples of crime and substance misuse prevention initiatives that have been both more and less successfully implemented throughout the world are used to demonstrate how one might go about identifying good governance systems and build and apply a science of implementation. Two key case studies are the Crime Reduction Programme in the United Kingdom, “the biggest single investment in an evidence-based approach to crime reduction which has ever taken place in any country,” and the Pathways to Prevention Project in Brisbane, Australia, which is attempting to bring together community-centered and research-to-practice approaches in a socially disadvantaged community. *This presentation is based in part on a forthcoming chapter co-authored with Peter Homel, Ph.D., Griffith University: Homel, R., & Homel, P. (in press), Implementing crime prevention: Good governance and a science of implementation. In B. Welsh & D. Farrington (Eds.), The Oxford handbook of crime prevention. Oxford: Oxford University Press