Michigan's highest court delivered a unanimous ruling that state judges may not impose a blanket ban on legal recreational marijuana use as a condition of probation simply because the drug remains illegal under federal law. The decision reverses a lower court ruling and settles, at least partially, a question that has lingered since Michigan voters legalized recreational marijuana in 2018.
The case centered on Danielle Heaven-Leah Hess, who pleaded guilty to third-degree retail fraud and was placed on probation. Among the standard conditions: no marijuana use. Hess tested positive for the drug twice. After the second failed test, she argued that her use was lawful under Michigan's recreational marijuana statute and should carry no penalty.
Lower courts disagreed. Prosecutors pointed to federal law, which still classifies marijuana as a Schedule I controlled substance, and to a Michigan probation statute that requires probationers to comply with federal law. The lower courts sided with the prosecution, upholding the marijuana ban in Hess's probation conditions. The Michigan Supreme Court, as CBS News Detroit reported, reversed that decision without a single dissent.
The justices found that Michigan's recreational marijuana law was specifically intended to prevent arrests and penalties for marijuana use that is legal under state law. When that law conflicts with other state statutes, including the probation provision prosecutors relied on, the marijuana law takes precedence.
The court also held that Michigan's recreational marijuana law is not preempted by federal marijuana prohibition. In other words, whatever Congress says about marijuana at the national level, Michigan's own legal framework governs how its courts treat state-legal conduct.
That distinction matters. The ruling does not declare federal marijuana law irrelevant everywhere. It says Michigan courts cannot use federal law as the sole justification for punishing a probationer who uses a substance Michigan voters chose to legalize.
The court was careful to draw a boundary around its holding. It declined to decide whether judges may restrict marijuana use in individual cases for reasons tied to rehabilitation, substance-abuse treatment, public safety, or when the underlying offense involves marijuana. That question, the court said, must wait for a future case.
This carve-out is significant. A judge who believes a particular defendant's marijuana use undermines recovery or poses a safety risk may still have room to impose restrictions, but not on the blanket theory that federal law forbids it. The legal test, going forward, will turn on case-specific facts rather than a one-size-fits-all federal prohibition.
The distinction between a categorical ban and individualized judicial discretion is exactly the kind of line courts are increasingly asked to draw as state and federal marijuana policies diverge. The U.S. Supreme Court recently confronted a related tension when it unanimously struck down a federal gun ban for marijuana users, signaling that federal marijuana classifications cannot automatically override other constitutional or statutory rights.
For readers who care about federalism, and who believe states should have broad latitude to govern their own affairs, this ruling raises a genuinely interesting tension. Michigan voters approved recreational marijuana through a ballot initiative. The state legislature codified it. The state's highest court now says the law means what it says: legal use is legal use, and state courts may not treat it as a crime by the back door of probation conditions.
On the other hand, marijuana remains a federal controlled substance. Federal law has not changed. And the Michigan probation statute prosecutors cited was not written by accident; it reflects a legislative judgment that probationers should comply with all applicable law, including federal law.
The court resolved that tension in favor of the more specific statute, the marijuana legalization measure, over the more general probation provision. Whether you find that persuasive depends in part on how you weigh voter-approved legalization against the plain text of a probation statute that existed before recreational marijuana was on the ballot.
The broader pattern is hard to miss. State courts across the country are being asked to reconcile state marijuana legalization with federal prohibition in contexts ranging from employment law to child custody to firearms. The U.S. Supreme Court has shown willingness to check lower courts that overreach their authority, but the patchwork of state-federal marijuana conflicts continues to grow.
For Michigan's criminal justice system, the immediate effect is straightforward. Judges may no longer impose a marijuana ban on every probationer as a default condition and then enforce it by citing federal law. Probation officers cannot flag a positive marijuana test as a violation on that basis alone.
That does not mean probation becomes a free-for-all. Judges retain broad discretion to set conditions tailored to the individual case. If a defendant has a substance-abuse history, or if the underlying crime involved drugs, a marijuana restriction may still be defensible, but the judge will need a reason beyond "the feds say so."
The ruling also carries implications for how Michigan courts handle the thousands of probationers currently subject to marijuana bans. Defense attorneys will almost certainly use this decision to challenge existing conditions, and prosecutors will have to decide case by case whether an individualized justification exists.
Meanwhile, the federal government's own posture on marijuana continues to shift in fits and starts, creating uncertainty that state courts are left to manage on their own. The Supreme Court's recent willingness to weigh in on major policy disputes suggests these state-federal collisions may eventually land in Washington, but for now, state high courts are drawing the lines.
Danielle Heaven-Leah Hess was not charged with a drug crime. She pleaded guilty to third-degree retail fraud, shoplifting. The marijuana ban was a boilerplate probation condition, not one tailored to her offense or her personal circumstances. She tested positive twice, and each time the system treated her legal conduct as a violation.
That sequence illustrates the core problem the court addressed. When a state legalizes a substance and then allows its courts to punish people for using it, not because of any connection to their crime, but because a different sovereign still calls it illegal, the state is speaking out of both sides of its mouth.
The unanimous nature of the ruling suggests the justices saw the contradiction clearly. Whatever disagreements may exist on the Michigan Supreme Court about marijuana policy, drug enforcement, or the scope of judicial discretion, none of the justices found it defensible to let federal law do the work that Michigan's own legislature and voters chose not to do.
The composition and direction of state supreme courts, like the federal bench, remain a subject of intense political interest. At the federal level, political dynamics around judicial appointments continue to shape how these questions are ultimately resolved.
This is a narrow ruling with broad implications. It does not legalize anything that was not already legal in Michigan. It does not strip judges of discretion. It does not override federal law. What it does is hold Michigan's own government to the bargain Michigan voters struck: if the state says marijuana is legal, the state's courts cannot treat it as a crime.
The open question, whether judges can restrict marijuana use on individualized grounds, guarantees this issue will return to the Michigan Supreme Court. When it does, the fight will shift from federalism to judicial discretion, and the stakes for probationers will be just as real.
When voters legalize something and the courts keep punishing people for it anyway, the law isn't the problem. The enforcement is.