Review of a 'test on arrest' pilot and core criminal justice provision for drug-using offenders in Hertfordshire. London: ICPR.

The key questions for the review were: 1. Does compulsory drug testing result in a higher proportion of criminally involved drug users entering and being retained in treatment? 2. Are there changes in levels of self-reported substance use, health and social functioning following exposure to compulsory drug testing? 3. What impact does exposure to compulsory drug testing have on the rate and volume of reoffending, and time to first re-offence? 4. What are the views and experiences of key stakeholders in implementing, developing and delivering test on arrest arrangements and other criminal justice interventions with criminally involved drug misusers across Hertfordshire?