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.

Good publicity!


get_the_word_outWe’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 cases.  This has resulted in two papers, both of which have now been published.

Delays in DUI blood testing, co-authored with Ashley Brooks-Russell, MPH, PhD and Phillip Drum, Pharm D was published by the peer-reviewed … 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

Tilting at windmills is also futile

Two recent research reports explain why blood tests are ineffective for determining driving impairment by marijuana, and why impairment-based DUI per se blood level limits for marijuana are useless.Rebecca Hartman’s team (R.L. Hartman et al. Read More