Organisation: Department for Infrastructure (NI)
Date uploaded: 14th April 2016
Date published/launched: March 2016
To assess the impact of CDDO on reoffending, a treatment group of participants who completed CDDO during 2010/11 was compared to a matched control group of people who had neither been referred to or completed the course but who had engaged in similar drink drive offences during 2010/11.
Further analysis was completed to compare a treatment group of participants who were referred to but did not complete CDDO during 2010/11, to a matched control group of people who had neither been referred to or completed the course but had engaged in similar drink drive offences during 2010/11.
Key findings:
• The current analysis indicates that completing the Course for Drink Drive Offenders significantly reduced the one and two year reoffending rates of course completers compared to a matched sample of non-attending offenders.
• There is insufficient evidence at this stage to draw conclusions about the longer term impact of the programme, as no significant difference was found in the three year reoffending rates between course completers and their matched sample.
• Similarly, there was no significant difference in one, two and three year reoffending rates for those who were referred but did not attend and their matched sample.
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