Weed And Guns: Supreme Court Shock

The Supreme Court is deciding whether the Founding Fathers’ habits with alcohol should determine whether a modern marijuana user can own a gun — and that is not a joke.

Quick Take

Federal law bans anyone who regularly uses illegal drugs from owning a firearm, and the Supreme Court is now deciding if that ban is constitutional.
The government argues marijuana users are dangerous and the ban is fair because they can get their gun rights back simply by stopping drug use.
The man at the center of the case, Zackey Hemani, was not high when police found his gun — and that fact is the core of his legal challenge.
Justices are debating whether colonial-era laws about drunk colonists are close enough to today’s marijuana ban to make it constitutional under the Court’s own rules.

A Federal Gun Ban That Turns on a Joint

Federal law, specifically 18 U.S.C. Section 922(g)(3), makes it a crime for any “unlawful user” of a controlled substance to own or possess a firearm. ^[1] That sounds simple enough. But in a country where marijuana is now legal in dozens of states, the law has created a strange legal trap. A person can legally buy marijuana at a state-licensed store on Monday and be a federal felon for keeping a gun in their home on Tuesday. ^[3]

The case before the Supreme Court is called United States v. Hemani. Agents found a 9mm pistol, 60 grams of marijuana, and 4.7 grams of cocaine in Hemani’s home. ^[2] He admitted to using marijuana several times a week. The government charged him under Section 922(g)(3). He fought back, and both the trial court and the Fifth Circuit Court of Appeals ruled in his favor. The government then asked the Supreme Court to step in. ^[2]

The Government’s Case Rests on Danger — But Whose?

The Department of Justice argues that habitual drug users pose a clear danger when they have access to firearms. ^[1] The government also says the ban is fair because it is temporary. Stop using drugs, and your gun rights come back. That argument has a certain common-sense ring to it. But the legal problem is that the statute does not say “habitual user.” It says “unlawful user,” which is a much broader category. ^[1] Courts have noticed that gap between what the law says and what the government wants it to mean.

Erie Police Chief Richard Laura testified that about 70 percent of 700 firearms seized in 2023 were linked to drug activity. ^[1] That is a striking number. But the key question the justices are wrestling with is different. It is not whether drugs and guns are a bad mix in general. It is whether the Constitution allows the government to strip someone’s gun rights based on drug status alone, without any proof they were impaired while holding a weapon. ^[2]

Why the Justices Are Asking About Drunk Founding Fathers

Here is where things get genuinely strange. In 2022, the Supreme Court’s ruling in New York State Rifle and Pistol Association v. Bruen changed the rules for Second Amendment cases. Under Bruen, a gun law is only constitutional if the government can point to a historical tradition of similar laws from the founding era. ^[2] That means lawyers must now dig through 18th-century records to find old laws that look enough like the modern one being challenged.

The government’s best historical argument is that colonial and early American communities sometimes disarmed people considered dangerous, including those known for heavy drinking. ^[2] The logic is that “dangerous person” was a recognized category then, just as “drug user” is now. But here is the problem the justices kept pressing on during oral argument: there is no founding-era tradition of stripping gun rights from cannabis users. ^[3] Cannabis as a legal category did not exist in 1791. So the government is forced to argue by analogy, and that analogy — drunk colonists equal modern marijuana smokers — is the one the Court is now picking apart. ^[6]

An Unusual Alliance Has Formed Against the Ban

Gun-rights groups, the American Civil Liberties Union, and some anti-drug advocates have lined up together against the federal ban in this case. ^[4] That is a rare combination. The American Civil Liberties Union’s legal director argued the law is unconstitutionally vague about what it even means to be a drug “user.” ^[4] Meanwhile, gun-rights advocates see the case as a broader test of whether the government can strip Second Amendment rights based on status rather than proven dangerous conduct.

The Supreme Court appeared skeptical of the government’s position during oral arguments, according to multiple reports. ^[6] That does not mean the ban will fall entirely. The Court could issue a narrow ruling that only protects non-impaired users like Hemani, leaving the broader law intact. But even a narrow ruling would force the government to prove actual impairment before charging someone, which would be a significant shift. The practical stakes here are real. Millions of Americans use marijuana in states where it is legal. Under current federal law, every single one of them is already banned from owning a gun. ^[3] The Court’s decision could change that — or it could leave a patchwork of state and federal rules that makes no sense to anyone living under them.