Drug testing in Canadian jails: to what end?

Area of Science:

• Criminology
• Forensic Toxicology
• Public Health

Background:

• Corrections Services Canada (CSC) mandates monthly urinalysis screening for at least 5% of federal inmates since 1995.
• Screening targets a wide array of psychoactive substances to curb drug use within correctional facilities.

Purpose of the Study:

• To analyze trends in urinalysis screening results within the Canadian federal inmate population.
• To evaluate the effectiveness of drug screening policies in reducing substance use in jails.

Main Methods:

• Analysis of urinalysis data provided by CSC for the period 1994-1998.
• Statistical examination of overall positive test rates and specific substance detection (opiates, cocaine, THC) across different security levels.

Main Results:

• A small but statistically significant increase in the overall percentage of positive urine samples was observed between 1994 and 1998.
• THC detection rates significantly increased across all security levels.
• Opiate and cocaine detection remained steady in maximum/medium security but decreased in minimum security.

Conclusions:

• Despite screening efforts, overall illicit drug use showed a slight increase.
• THC use appears to be rising within federal correctional facilities.
• Drug use patterns vary by security level, necessitating tailored intervention strategies.