“…Heroin and crack cocaine users in our study had a greater likelihood of continued drug usage in prison. Both substances are considered highly addictive (Termorshuizen, Krol, Prins, & van Ameijden, 2005), and persistent use is associated with serious long-term consequences (Hser, Hoffman, Grella, & Anglin, 2001) including infectious disease transmission and/or progression (Baum et al, 2009; Gyarmathy, Neaigus, Miller, Friedman, & Des Jarlais, 2002), unintentional drug overdose (Galea et al, 2003; Moller et al, 2010), and death (Termorshuizen, Krol, Prins, & van Ameijden, 2005), all of which disproportionately affect newly released prisoners (Binswanger et al, 2007; Merrall et al, 2010). …”