Drinking Establishments
Establishments that serve alcoholic beverages have an interest in ensuring that their customers do not pose a traffic safety hazard to others as they leave the establishment. Several investigations have looked at efforts made by drinking establishments to discourage drunk driving, including monitoring alcohol levels. Unfortunately, the studies found that efforts failed to curtail drunk driving or had a negative impact \cite{Lang1998,Nau1993a,Russ_1988}. Drinking establishments should use caution before implementing efforts to curb drunk driving through the use of a breath alcohol test.