Interesting, but I bet tests like those can be beat.
ANY test can be gamed. Including breathalyzers and street sobriety tests.
I know some pretty focused potheads who would excell at those games but still couldn't be trusted with hurling a two ton metal casket down the street at 110kph while stoned.
I'd disagree - generally, if you are un-impaired enough to complete these tasks, you're un-impaired enough to drive... at least that is how the numerous trucking companies using these sorts of functional impairment tests are rolling.
There's has to be a balance between one man's freedom to drown himself in drink and another man's right to be free from the potential danger of the first man's inebriation. I think that most rational people would be happy to cope with a tiny bit of restiction when it comes to where you can be and what you can do while drunk or high if the boons of the ristrictions are safety and peace of mind for everyone.
You're making the assumption that evidence exists to support a .08 BAC limit as impaired. It really doesn't. Especially not when you compare it to the .10 BAC limit it has replaced in most places.
Generally, lowering the BAC limit from .1 to .08 has done nothing to reduce drunk driving injuries/deaths. It has increased government revenue from DUI fines.
A mind altering chemical in your brain is cause enough for you to be taken off the road.
Really?
1 drink - off the road.
1 cup of coffee - off the road.
1 aspirin - off the road.
I think you're forgetting just how many "mind altering" chemicals we regularly use.
Opioid pain killers
Nicotine, amphetamines, cocaine, caffeine
NSAID's
Prozac, Zoloft, Paxil, Celexa, Cymbalta, Effexor, Wellbutrin
Risperdal, Abilify
Neurontin, Topamax, Lithium
Xanax, Ativan, Librium

