“…The second is the "drugs and performance" dimension, which centres around how drug behaviours follow functional patterns (Van Maanen, 1992). When problematic, drugs may be used to handle serious psychological problems (Drake, Mueser, Brunette, & McHugo, 2004) or conduct criminal actions (Holland et al, 2014;van der Pol, Henderson, Hendriks, Schaub, & Rigter, 2018). In non-problematic drug use, drug use often has an important social and cultural function in the workplace and in social life (Anderson-Gough, Grey, & Robson, 1998;Ho, 2009;Nixon & Crewe, 2004).…”