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Can I Legally Use Marijuana in Canada then Drive Home to Michigan?
No. Using Marijuana lawfully in Canada puts you at risk of an intoxicated driving charge in Michigan. This is true even though Canada recently passed new federal laws effectively making it legal to possess and use marijuana. Nevertheless, this new Canadian law may have an impact on how intoxicated driving laws are enforced here in Michigan. To understand why it’s helpful to briefly summarize Michigan’s drugged driving laws.
Until marijuana is also legalized for recreational use, Michigan’s intoxicated driving laws distinguish between the lawful and the unlawful use of marijuana. For people who can lawfully use medical marijuana, the police and prosecutor must show that the marijuana lawfully consumed substantially lessened the ability to operate the motor vehicle. In these circumstances, the police and prosecutor will rely on the driving observed and the roadside behavior of the motorist, including the performance on any field sobriety tasks, administered. Sometimes a blood test result showing a high level of THC in the blood will also be used to bolster their evidence of intoxication. If the jury believes that all of this evidence shows that the driver was intoxicated, then a conviction for OWI or Operating While Intoxicated will follow.
This level and type of proof are much different for the unlawful use of marijuana where the prosecutor need only show that at the time of driving the accused had any amount of THC in their blood. This is a zero-tolerance crime, meaning that the prosecutor is relieved of any burden to show intoxication. Simply having the THC in the bloodstream at the time of operation is sufficient.
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