Association between the types of offence, demographic profile, and level of intoxication among substance abusing violent offenders in a Nigerian prison

Abstract

The association between substance use and criminality can be deduced from the acknowledgment of the increase of what are commonly called drug-defined offences, and those offences committed while under the influence of drug and/or alcohol. The aim of this study was to determine the prevalence of substance use disorder, the relationship between type of crime and demographic profile, and the relationship between offence committed and degree of intoxication with alcohol and illegal drugs at the time of crime among convicted and awaiting trial violent offenders. A cross-sectional descriptive study was carried out among 432 male inmates either convicted or awaiting trial in Jos maximum security prison, Plateau state. They completed a pro forma questionnaire containing their demographic and forensic profiles. They were screened with self-administered General Health Questionnaire item 28 and interviewed with the Composite International Diagnostic Interview questionnaire. The prevalence of substance use disorder was 54% (233). A significant correlation was found between type of offence committed and intoxication with substance at the time of crime (odds ratio = 0.3003; P= 0.001). High prevalence of substance use disorder was found among violent offenders in the prison.