As predicted, California passed Proposition 64, otherwise known as The Adult Use of Marijuana Act, on November 8th 2016. This made it legal for people to possess and use marijuana recreationally in California. However, it wasn’t until January 1st of this year that recreational marijuana could be sold to consumers.
So what does this mean for marijuana laws in California, including marijuana DUI laws?
Well, let’s start with the laws that aren’t related to a DUI of marijuana. Adults over the age of 21 can purchase and possess up to one ounce of marijuana and can grow up to six plants per household out of public view. People under the age of 18 can only purchase marijuana if they have their medical license.
Those who are able to possess marijuana cannot consume in public, even in areas where it is legal to smoke cigarettes. Some cities plan on allowing consumptions of marijuana at designated lounges. However, until then, smoking in public places can lead to fine of $100 to $250.
Just like alcohol, drivers cannot consume marijuana while driving. And any marijuana that is being transported in a car, must be in a sealed container in the trunk.
While marijuana laws have changed in many other respects, it is still illegal to drive while under the influence of marijuana.
California Vehicle Code section 23152(e) makes it illegal to drive a vehicle while under the influence of drugs including marijuana. Unlike California’s DUI of alcohol law, there is no legal limit for marijuana, or more specifically, tetrahydrocannabinol (THC) the psychoactive component of marijuana. Therefore, a person can only be arrested and convicted of a marijuana DUI if the ingestion of marijuana impairs a person’s ability to drive a vehicle as a sober person would under similar circumstances.
To prove that a person is driving under the influence of marijuana, a prosecutor can use officer observations of driving patterns, observations during the traffic stop, performance on field sobriety tests, and the presence of THC in any blood test done.
Since “under the influence” is an extremely subjective standard, it is often very difficult to prosecute DUI of marijuana cases. This is especially true if the driver refused to perform the field sobriety tests and/or the officer did not observe driving that would be indicative of someone who is under the influence of marijuana.
Law makers could seek some sort of per se limit for how much THC can be in a person’s blood while driving. Several states have set a per se limit of five nanograms of THC per milliliter of blood. Colorado, has set a five nanogram per milliliter of blood limit to allow for the presumption that a person is “under the influence.” Unfortunately, current per se limits for THC, are an inaccurate measure of how impaired a person is.
Unlike alcohol, THC is fat soluble and remains in a user’s system long after they have ingested the marijuana, sometimes by several weeks. This creates the possibility of being arrested with five nanograms of THC in the system weeks after a person has smoked marijuana and well after the “high” is gone. Yet, because the THC is present, a person can either be arrested or, in Colorado, presumed to be under the influence.
As tech companies are scrambling to be the first to develop a device that will allow law enforcement to test “how high someone is,” Assemblyman, Tom Lackey, who is a former sergeant with the California Highway Patrol, has introduced Assembly Bill 6 which would allow tests using saliva samples taken from drivers suspected of driving under the influence. The test would let the officer know whether a driver has recently used a number of drugs including marijuana.
“The ballot initiative passed [in 2016] to legalize marijuana will result in more marijuana consumers on our state’s highways and roads,” Lackey said in a statement. “It is imperative that we invest in a broad spectrum of technologies and research to best identify marijuana-impaired drivers.”
There is an established correlation between blood alcohol content, specifically the legal limit of 0.08 percent, and alcohol impairment. Unlike alcohol, however, there is no such correlation between the presence of drugs and impairment. In other words, a person can have traces of drug in their system without being impaired by that drug.
Marijuana, for example, can stay in a person’s system for weeks following the smoking or ingesting of the marijuana and well after the person was intoxicated or stoned. The purpose of DUI laws is to prevent impaired driving, not to punish sober and unintoxicated people merely because they ingested drugs at some point in the past.
Until we can establish a correlation with drugs including marijuana like we have with alcohol, namely the correlation between quantity and impairment, we shouldn’t be using pushing for laws like this.
Assembly Bill 6 will be brought up for a vote early this year.
Since it is perfectly legal to consume marijuana and have THC in your system, it is important to protect yourself from unwarranted DUI of marijuana charges. Do not say anything to the police. The 5th Amendment exists for a reason; use it. Politely refuse any field sobriety tests. Lastly, remember that you must submit to a chemical test after you have been arrested.