“…The epidemiology of drug addiction is complicated and the direction of causality can be difficult to tease out, but substance use disorder is statistically correlated with social disadvantage and exclusion (McPhee et al, 2019a). People suffering from addiction are often members of socially deprived communities who lack education, employment, or training (Buchanan, 2004;McPhee et al, 2019a). Adverse Childhood Experiences (ACEs), specific abuse, neglect, and household dysfunction exposures such as household substance abuse and family incarceration (Centres for Disease Control and Prevention, 2018), combined with school exclusion and unemployment/ under-employment, are also criminogenic risk factors associated with problematic drug use and psychiatric problems in prison (Boys et al, 2002;Kolind & Duke, 2016).…”