“…All the evaluations commented on the need for an effective and informed champion in middle management. This finding chimes with the lessons of research into the implementation of police innovations such as team policing (Sherman, Milton, & Kelly, 1973;Walker, 1993), problem solving and hot spotting (Irving & Dixon, 2002;Sherman et al, 2014), community policing (Vito, Walsh, & Kunselman, 2005), mental health diversion programs (Reuland, 2004), and domestic violence experiments (Sherman, 1992). In addition, it was quite apparent that the more effective programs operated within a strategic framework in which encouraged multiagency efforts that had been agreed by senior management across the agencies concerned (Haines et al, 2012;ICPR, 2012).…”