Do alcohol interlocks reduce drunk-driving recidivism among offenders?
• Research shows that alcohol interlocks reduce recidivism among both first offenders and repeat offenders, including hardcore offenders (also known as persistent/chronic drinkers and repeat offenders who repeatedly drive after drinking with extremely high blood alcohol concentrations and are resistant to change this behaviour). More than 10 evaluations of interlock applications have reported reductions in recidivism ranging from 35 – 90% (Voas and Marques 2003; Vezina 2002; Tippetts and Voas 1997; Coben and Larkin 1999) with an average reduction of 64% (Willis et al. 2005).
