“…Using both cross-sectional and longitudinal designs, numerous studies reveal that socialisation is an important process by which attitudes may change (e.g., see Alwin, Cohen & Newcomb, 1991;Bobo & Licari, 1989;Dambrun, Kamiejski, Haddadi, & Duarte, 2009;Guimond, 2000;Guimond et al, 2003;Newcomb, 1943;Sinclair, Sidanius, & Levin, 1998). Interestingly, research provides strong support for an effect of socialisation in the police (Carlson & Sulton, 1975;Genz & Lester, 1976;Hageman, 1979;McNamara, 1967;Teahan, 1975;Wortley & Homel, 1995). For example, McNamara (1967), Carlson and Sutton (1974) and Hageman (1979) found that authoritarianism increased in function of the amount of time worked in the police.…”