Arizona court to rule on medical pot law, DUI prosecutions

The Arizona Supreme Court is scheduled to rule Friday on whether people with medical marijuana cards can be prosecuted for driving under the influence if they have traces of marijuana in their systems.

Two cardholders went to the state high court after losing initial appeals of their Mesa Municipal Court convictions for driving while having marijuana metabolites in their systems.

The Court of Appeals ruled that cardholders cannot use a state law that bars DUI prosecutions of people with prescriptions for drugs. The ruling said that’s because…