You know your statement makes no sense. A checkpoint takes the drunk driver off the road and charges him for that offense.
Do you want to give the Police power to follow this guy 24/7 for a DWI? Because if you don’t, which I don’t, you can’t stop him from drinking and getting into a car again. But without those five checkpoint arrests he could have killed 5 times.
He has now served time and has no license. But you can’t stop him from hopping into a borrowed car and driving drunk again.
Agreed, blowing .08 does not in any way prove impaired driving, and with such harsh penalties the government ought to be required to prove an act which is in fact unsafe. As an infrequent drinker (and not necessarily because I am), I consider myself impaired at a pretty low level, and I know my limit and act responsibly. Others I know can put away a lot more before I would be worried about them. Point is, everybody doesn’t fit neatly into the same box and impairment can not be simply measured, rather it must be observed.