“…Therefore, the empirical work relying on the police integrity theory incorporates the exploration of the code of silence (e.g. Chappell and Piquero, 2004;Greene et al, 2004;Hickman et al, 2001;Klockars et al, 2000Klockars et al, , 2006Kutnjak Ivković et al, 2013;Kutnjak Ivković and Sauerman, 2013b;Kutnjak Ivković and O'Connor Shelley, 2008;Long et al, 2013;Marche, 2009;Micucci and Gomme, 2009;Pagon and Lobnikar, 2000;Piquero and Hickman, 1999;Rothwell and Baldwin, 2007a, b;Schafer and Martinelli, 2008;Wolfe and Piquero, 2011).…”