This article concludes that random breath test enforcement could increase the general awareness of drink driving and that with this awareness drivers are less likely to engage in drink driving behaviour as they perceive drink driving as a potentially costly and illegal act. Hence, publicity campaigns play an important role in creating awareness and educating the public.
Terer K, Brown R. Effective drink driving prevention and enforcement strategies: Approaches to improving practice. Trends & Issues in Crime and Criminal Justice; Woden. 2014 Feb;(472):1–8. Available from; https://aic.gov.au/publications/tandi/tandi472