Arizona’s Court of Appeals just ruled the state’s medical marijuana law does not give drivers immunity from prosecution if marijuana, or its inactive chemical compound, is found in the body.
Inactive marijuana metabolites can stay in the bloodstream for up to 2 or 4 weeks after use. This means that a medical marijuana patient can consume marijuana today and be arrested on DUI charges weeks later, when they are clearly no longer “high” or “under the influence” from using marijuana. It is the equivalent of consuming an alcoholic beverage today and getting a DUI weeks later for consuming that beverage.
There are currently about 50,000 medical marijuana patients in Arizona.