Blood-THC level ‘poor indicator’ of impairment

According to a panel discussion held in Colorado, one of the states that recently legalized marijuana for recreational use, measuring the blood-THC level is a “poor indicator” of driving impairment.

Lawmakers want to prevent bad driving, whether it’s from alcohol or drugs, and are seeking ways to determine impairment for drivers pulled over for driving under the influence of marijuana.

The amount of THC (or “tetrahyrocannabinol,” the psychoactive ingredient causing the “high”) in the bloodstream has been considered for a long time to be one way to measure impairment, but this method has its critics.

In fact, Greg Campbell’s story in the Daily Caller describes a doctor who said his patient was “in no way incapacitated” after a blood test showed the patient’s THC level was three times above the limit proposed by Colorado lawmakers. (This patient smoked marijuana for medical purposes daily.)

Lawmakers want something to work with, some way to prosecute people for impaired driving because of marijuana. On the other hand, that “something” should be based on common sense, not an arbitrary number.

This law firm often handles impaired-driving cases involving both alcohol and drugs. For more information, please visit our Baltimore DUI page.

Source: Thresholds for stoned-driving charges remain hazy