Michigan has a zero tolerance per se drugged
driving law enacted for cannabis and other controlled
substances. Cannabis metabolites are excluded under the law.
(Michigan Vehicle Code 257.625 Section 8)
Michigan's law
took effect in October 2003.
Every state has DUID (driving under the influence of drugs) legislation on
the books. These laws fall into three distinct categories: Effect-Based
DUID Laws, Per Se
DUID Laws, "Zero Tolerance" Per Se Laws.
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