“…Four studies were randomized field experiments (Shapland et al, 2007(Shapland et al, , 2008Sherman et al, 1998;Weisburd et al, 2008), including one problem-oriented policing study and the two restorative justice conferencing studies. Fifteen studies used pre-post only designs (Bond & Gow, 1997;Dunworth & Mills, 1999a, 1999b, 1999c, 1999dEckert, 2009;Hartstone & Richetelli, 2005;Hinds, 2009;Kerstetter & Rasinski, 1994;Murphy et al, 2008;Singer, 2004), and eleven studies used other nonrandomized designs (Dai, 2007;Hall, 1987;Holland, 1996;McGarrell & Chermak, 2004;Panetta, 2000;Ren et al, 2005;Robinson & Chandek, 2000;Skogan & Steiner, 2004;Tuffin et al, 2006;Young et al, 2005;Zevitz et al, 1997). Studies were required to use "business as usual," or standard model policing as the comparison.…”