I don’t disagree but the law should be based on an individual’s impairment. Nobody wants people out on the road drunk or stoned (at least I don’t).

The problem with testing for cannabis as opposed to alcohol is that, as the law currently exists, there is no real correlation between testing positive and actual impairment. A blood alcohol level is a pretty fair indication of someone’s impairment.

Politician love “zero tolerance” laws to sound tough on crime. Zero tolerance for cannabis just means that thousands of unimpaired drivers will be charged with DUI. Even if you don’t care about the repercussions for individuals, that is a huge waste of time, money and law enforcement resources, IMO.