Quote Originally Posted by TheReleafCenter
Anything that is a drug that affects how you drive is illegal currently.
That isn't completey true. If I was hopped up on my third cup of coffee and tailgating and driving aggressively and a cop pulled me over, she would likely charge me with reckless driving, or careless driving, but she wouldn't look at my coffee cup and ask me to step out of the car so that she could determine if I had enough caffeine in my blood through a blood test to be considered impaired.

She would just write the ticket.

In this case the coffee isn't illegal or the caffeine in my blood, it's the driving. So should it be for marijuana.