Since the conversation here has turned much to the topic of impaired operation I thought that this
article is extremely relevant.
Some honestly believe that the simple implementation of a rule or regulation will be followed with blind obedience by the great majority of those affected by such change.
What this study shows, as many of us in law enforcement have dealt with on a daily basis for decades, is the simple fact that drunk driving kills and maims thousands each year and all the laws in society have not been enough of an effective deterrent to stem the flow of blood.
Anyway, the story about this particular study is very sobering, to say the least.