DUID Victim Voices

Education and promoting effective laws to reduce Driving Under the Influence of Drugs (DUID)

About DUID Victim Voices:

Many voices are heard when a state considers stronger DUID laws. The voices of the marijuana lobby, law enforcement professionals, forensic toxicologists, and drug users typically dominate. DUID Victim Voices represents the interests of the victims of drugged driving, providing fact-based education and a victim perspective to decision makers and to the general public.


All states define alcohol DUI per se with laboratory tests that prove impairment by a blood alcohol level greater than .08 gm/dl for adults and greater than zero (or .02 gm/dl) for minors. Laboratory tests are routinely performed for all suspected alcohol DUI cases. Only 17 states define drug DUI (DUID) per se by objective laboratory tests.

Three additional states have established permissible limits for marijuana’s active THC in drivers, but these limits are a poor substitute for comprehensive drug per se laws. All other states use more difficult, costly, and subjective means to prove DUID on a case-by-case basis, with highly variable results.

Why a 5 ng/ml THC limit is bad public policy

ATT000077The world is coming to realize that the infamous 5 ng/ml THC legal limit imposed by Colorado, Washington, and Montana are badly flawed.  The marijuana lobby claims users can be unimpaired at levels higher than that.  New research shows that drivers are impaired at levels well below that.  This is a position we’ve taken for years, and welcome the fact that others agree.

The AAA Foundation for Traffic Safety issued a press release saying, “New … READ MORE

Good publicity!

 We’re getting the word out about DUID, and our research is now being acknowledged by the scientific community!  For the last few years, we’ve conducted research into the causes of DUI in Colorado’s vehicular homicide and vehicular assault Read More

More bad journalism

Jacob Sullum, a pro-pot writer for Reason and Fortune magazines, is at it again.This time, he claims that marijuana’s impact on crash risk has been greatly exaggerated, based upon Rogeberg and Elvik’s (R&E) paper, soon to be published in the Read More