“…However, imprisonment alone is associated with a number of problems that can encourage drug use as a coping mechanism, such as the stressful prison environment, feelings of loneliness, and feelings of lack of control over their life. The other main reasons for drug use in prison have been found to be to relieve boredom and pass time, relieve insomnia, and manage withdrawal symptoms (Boys et al, 2002; Bullock, 2003; Calzavara et al, 2003; Cope, 2000, 2003; Dillon, 2001; dos Santos et al, 2014; Duke & Trebilcock, 2022; George et al, 2009; Gryczynski et al, 2021; Kolind, 2013; Mjåland, 2016; Monico et al, 2021; O'Hagan & Hardwick, 2017; Penfold et al, 2005; Ritter et al, 2013; Rogers et al, 2022; Rousselet et al, 2019; Wakeling & Lynch, 2020).…”