“…The literature on co-offending is substantial (Conway and McCord, 2002;McGloin et al, 2008;van Mastrigt and Farrington, 2011;Carrington, 2002Carrington, , 2009Piquero, Farrington and Blumstein, 2007;Reiss and Farrington, 1991;van Mastrigt, 2008). Although the term itself was coined by Reiss (1980) only 30 years ago, many of the early, 20 th century crime scholars have considered co-offending to one extent or another (e.g., Cloward and Ohlin, 1960;Cohen, 1955;Shaw and McKay, 1942;Shaw and Moore, 1931;Sutherland, 1947).…”