An investigation of the usefulness, acceptability and impact on lifestyle of alcohol ignition interlocks in drink-drive offenders

This report summarises the findings of a longitudinal controlled study in which drink drive offenders had their cars fitted with an alcohol ignition interlock for a period of 12 months. Participants were asked to complete questionnaires and take part in interviews throughout this period and at six months after the removal of the device. The study reports on the practicalities of setting up such a scheme, and on its effect on those who participated, and their families.

This research project reviewed existing interlock programmes and examined the
practical issues that arise from setting up and operating a programme that involved
the use of this technology by convicted drink drivers. The report describes the
technology, the existing interlock programmes and their effectiveness in reducing
drink driving, and reports on the results of a longitudinal experimental research
study carried out in the UK.