Marijuana, even in low to moderate doses, negatively affects driving performance in real situations. While previous research on alcohol effects alone show that alcohol at BACs around .10 is far more impairing than low or moderate THC doses alone, marijuana does impair driving performance. Drivers would be less than normally able to avoid collisions if confronted with the sudden need for evasive action. The effect of combining moderate doses of alcohol and moderate doses of marijuana resulted in a dramatic performance decrement and levels of impairment, as great as observed when at 0.14 BAC alone.
So according to this you would have to be over the legal alcohol limit to drive worse than someone who has had 'low or moderate THC doses'. And combining the two is worse than having a BAC of .14!! Now which is worse again
They can hardly go two sentences without having to contradict themselves. You have been had, sir. Read what it actually says. When they get honest, they admit its the alcohol that causes problems. A regular pot smoker is not impaired. DOT does not even report "wrecks caused by marijuana" because a) they cant distinguish between other factors or pot and b) because you dont know if they are high. "Illegal drugs" are reported to be the cause of very few traffic accidents. Check that with DOT.
Most every casual pot smoker will tell you that it does not impair routine type activities. If you look into studies that "show" pot impairs you, I promise you will find that the subject was either a) not a normanl pot smoker b) was given a very unusually high dose or c) was given a task that was not normal, and one they would never take on. Its been said many times, tell me ehat result you want, and I will conduct a study that shows that result.