The bulk of studies pertaining to addiction among delinquents have been con
ducted on male subjects. However, the few studies examining female inmates
show that a significant proportion of them present an addictive disorder. F
urthermore, the HIV infection rate is higher among these women than among i
ncarcerated men. This study attempts to verify if women presenting a combin
ation of criminal and addictive behaviors are at a higher risk of developin
g an earlier and a more severe delinquency than other delinquent women. Ano
ther goal is to determine whether women showing this comorbidity present a
higher incidence of HIV-related risk behaviors. The study was conducted on
a sample of 210 women from the Montreal detention center. It shows that add
icted inmates present earlier onsets of both drug use and criminal behavior
s compared to other female inmates. Addicted women also exhibit significant
ly more HIV-related risky behaviors, both in their drug use and in their se
xual practices.