CO Marijuana DUI FAQs (Pt. 1)
May 16, 2015
While you may be aware that stoned (or drugged) driving is illegal in Colorado, understanding the facts about Colorado marijuana DUIs is essential to protecting your rights. This two-part blog series will respond to some of the most frequently asked questions about Colorado marijuana DUIs, shedding some light on when these charges may come into play.
For those who are facing any type of DUI or criminal charges, however, don’t hesitate to contact our experienced Denver and Boulder DUI lawyer for the strongest defense and best possible resolutions to your case.
CO Marijuana DUIs: The Answers You Need
Q – What are the legal limits for CO marijuana DUIs?

Need answers about Colorado marijuana DUI charges? If so, get answers from an experienced Denver and Boulder DUI lawyer in these FAQs. Or contact us today.
A – Currently, the legal limit is 5 nanograms of THC per milliliter of blood. This means that, if people have at least this level of THC in their bloodstreams, they may be arrested for and charged with a DUI in Colorado.
Q – How is marijuana impairment tested/evaluated?
A – Via blood tests. In fact, as opposed to alcohol-related DUIs for which breath and urine tests may also be an option, blood tests are the only option for assessing THC impairment.
It’s critical to point out here that:
- Blood tests for THC/marijuana impairment still lack refinement; therefore, there can be issues with the accuracy/reliability of these tests.
- The limit of 5 nanograms may not be a viable limit for establishing impairment. This is because people have different tolerance levels.
- Motorists have the right to refuse blood tests during DUI stops.
- If you end up being asked to submit to a blood test during a DUI stop and you choose to do so, it’s smart to request an additional blood sample be taken (for independent testing purposes later).
Q – How soon do cops have to perform blood tests for marijuana DUIs?
A – Right now, there are not specific time frames in place. In contrast, with alcohol-related DUIs, cops have to typically draw blood from motorists within two hours of the DUI stop/the motorists having driven.
Be sure to check out the upcoming second part of this blog series for some more important answers to frequently asked questions about CO marijuana DUIs. In the meantime, share your thoughts about Colorado marijuana DUIs with us on Facebook and Google+.
Denver and Boulder DUI Lawyer at the Griffin Law Firm
Have you been charged with a marijuana-related DUI or with any type of drunk driving charge? If so, you can turn to the Denver and Boulder DUI defense lawyer at Griffin Law Firm for experienced help and the best possible defense. With more than 18 years’ experience in the criminal justice system, our attorney understands the complexities of the system, the challenges different defendants can face and the best ways of overcoming these challenges to bring criminal cases to successful resolutions.
Our steadfast dedication to the notion that the accused are innocent until proven guilty means that we will do everything in our power to help you resolve your case in the most favorable and efficient manner possible.
The accused are innocent until proven guilty and we believe everyone deserves to be treated fairly.
Christopher Griffin
It is our goal to ensure that every person charged with a crime is given the experienced and caring representation they deserve.
Christopher Griffin