There are now stricter penalties in Michigan for people caught driving after smoking marijuana. The State Supreme Court has made it easier to prosecute drivers with a chemical found in their body that's released as the active ingredient in marijuana, THC is broken down.
Those drivers can now be charged with "driving while intoxicated." The ruling also says prosecutors don't have to prove, beyond a reasonable doubt, that a person was intoxicated while driving, just that the chemical was present in their body at the time they were behind the wheel.
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