Samenvatting
To evaluate and increase the validity of countermeasures aimed at changing drinking habits, and statutory measures concerning the b.a.c. of drivers, research is needed on: a) the actual distribution of b.a.c. in the driving population ''before'' and ''after'' the introduction of the countermeasure; b) analytical methods for assessing the b.a.c. of drivers at the time they are stopped by police officers.