Alcohol interlocks and prevention of drunk-driving recidivism

IntroductionAlcohol interlock programs (AIP) are aimed at preventing drunk-driving recidivism. They first appeared in Europe in the nineties.ObjectivesThe purpose of this study was investigate whether AIPs are effective in reducing recidivism and determine what factors of such programs contribute to their positive impact.MethodWe performed a follow-up of AIP participants (n = 175) and control participants (n = 234) for five years. Data such as blood alcohol concentration (BAC) at time of arrest, previous and subsequent violations (alcohol-related or other types) were collected from the official driver's license files. For self-evaluation and evaluation of the program (since November 2009 only), we used questionnaires based on two theoretical models: the Transtheoretical Model of Change (Prochaska & DiClemente, 1984) and the Diamond of Change Model from the DRUID project, build to explain which are the elements of driver rehabilitation training courses that favor behavioral modification (Bukasa et al., 2009).ResultsThe data obtained allowed us to describe these populations of alcohol-drinking offenders, for both the interlock program group and the control group. Two salient features were male proneness to alcohol-related violations and a very high BAC (between 1.5 and 2 g/l) among the majority of drivers who drink under the influence of alcohol. In terms of recidivism reduction, the interlock program was not clearly linked to a beneficial effect. An analysis of behavioral change among the AIP participants showed that consciousness raising took effect more quickly than did environmental reevaluation or reinforcement management.ConclusionsThe application of Prochaska et al.’s model to the follow-up of AIP programs would be more fruitful in the future if psychologists are involved in the program. As we have seen, medical/psychological monitoring may not have been strong enough in the program studied here.