States That Legalized Marijuana Debate What Constitutes Driving Under the Influence of Drugs
Date:  08-25-2015

Some states allow a small amount of THC in the blood, other states consider any amount of THC to be cause for arrest
A Pew Charitable Trusts’ Stateline report found that now marijuana is legal for recreational or medical use in several states and Washington, D.C., officials of those states are wrestling with the question: What constitutes driving under the influence of drugs (DUID)?

Is a Drug Recognition Expert’s testimony in court more reliable than test results for THC? There are reports that THC levels in the blood decreases rapidly but a driver can still be impaired. But, according to Stateline, “... a February 2015 drug and alcohol crash risk study from the Department of Transportation… points to contradictions between previous studies about the relationship between marijuana use and motor vehicle crashes. The analysis, which looked at marijuana and other drugs, found that, when adjusted for age, gender and alcohol use, there was no significant increase in the level of crash risk associated with the use of THC.”

Read more from Stateline here.