How effective are increased police patrols for preventing alcohol-impaired driving?
The detail provided on the methodology of included studies was almost uniformly poor. When this information was reported, the methodological quality was often weak. Methodological limitations included inadequate sample size, dissimilar baseline measures, contamination, and inadequate data analysis. Nearly three-quarters of the studies had at least one methodological limitation which could affect their results.
Road traffic injuries cause 1.2 million deaths worldwide each year. Alcohol consumption increases the risk of traffic crashes, especially fatal crashes. Increased police patrols aim to increase both the perceived and actual likelihood of being caught driving while alcohol-impaired, potentially reducing alcohol-related driving, crashes and injuries.