[ndt]

"If the chemical is found in your blood then you are guilty of breaking the law."

Not if the law is "driving under the influence". Having a metabolite in your system that is not psychoactive is not influencing anything.

[Sir Francis Dashwood]

Having a metabolite in your system that is not psychoactive is not influencing anything.

Now that marijuana is considered medicine to relieve pain, how should it be treated any different than any other pain meds that restrict driving???