Michigan voters legalized recreational cannabis in 2018 (MCL §333.27951+), but consuming in public remains a civil infraction under MCL §333.27954. Wayne County enforces this on county property; Detroit and most cities issue $100 to $500 fines for sidewalk, park, or vehicle-passenger marijuana use.
Michigan's Regulation and Taxation of Marihuana Act allows adults 21+ to possess up to 2.5 ounces and consume in private residences. Public consumption — including parks, sidewalks, motor vehicles, schools, and on-the-clock workplaces — remains a civil infraction with $100 fines. Wayne County Parks Code bans cannabis at all county facilities. Detroit licenses some on-site consumption lounges under municipal cannabis ordinances. Driving under the influence remains a criminal offense regardless of legalization. Cannabis odor alone is no longer probable cause for vehicle search per Michigan Court of Appeals 2023 ruling. Federal property and DTW Airport remain entirely cannabis-prohibited.
Public consumption is a civil infraction with $100 first-offense fines, escalating for repeat offenses. Driving under cannabis influence is a criminal misdemeanor or felony.
See how Dearborn's public marijuana use rules stack up against other locations.
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