Supreme Court Rules Federal Marijuana Gun Ban Unconstitutionally Vague

The Supreme Court ruled unanimously on Thursday that a federal law prohibiting regular marijuana users from possessing firearms violates the Second Amendment. The decision, authored by Justice Neil Gorsuch, limited the scope of the 1960s-era statute but did not invalidate it entirely. The Court found the law unconstitutionally vague, as it does not define the term "unlawful user" of drugs.

Case Background

The case involved Ali Danial Hemani, a dual US-Pakistan citizen who was indicted in 2023 for violating the federal law (18 U.S.C. § 922(g)(3)). The charge followed an FBI search of his Dallas-area home in 2022, during which agents discovered:

• A Glock 9mm pistol
• 60 grams of marijuana
• A small quantity of cocaine (noted by some sources, though only the gun charge was filed)

Hemani stated he used marijuana "about every other day." He was not charged with drug dealing or terrorist ties. The same statute was used to convict Hunter Biden in 2024 before he received a pardon.

Supreme Court Decision

The Court unanimously agreed with Hemani's challenge that the statute was impermissibly vague. Justice Neil Gorsuch wrote the opinion, which the Court described as narrow in scope.

Key Holdings

• The government failed to demonstrate that Hemani's regular marijuana use made him dangerous or violent
• Historical laws disarming "habitual drunkards" do not justify the current law's broad application
• The decision does not address bans on addicts or intoxicated individuals
• The ruling does not affect other potential laws Congress might pass for specific drugs

"We do not question that sometimes an individual's unlawful use of marijuana may render him a danger to others. But, again, the government disclaims the need to show anything like that in this case. Instead, it asks us to conclude that anyone who regularly uses marijuana is categorically violent and dangerous without any further showing."

Legal Context

The decision follows the Supreme Court's 2022 ruling in New York State Rifle & Pistol Association v. Bruen, which established a new test for evaluating gun restrictions. Under this standard, gun regulations must be "relevantly similar" to those existing at the nation's founding in the late 1700s to be constitutional. A subsequent 2024 decision in Rahimi clarified this test in the context of domestic violence restraining orders.

Arguments Presented

Government Position

The Justice Department, under the Trump administration, defended the law. Deputy Solicitor General Sarah Harris argued the prohibition aligns with founding-era laws that barred guns for "habitual drunkards." Solicitor General D. John Sauer stated that approximately 300 people are charged annually under the law, which carries up to a 15-year prison sentence.

The government argued that "habitual illegal drug users with firearms present unique dangers to society," particularly regarding potential armed encounters with law enforcement while impaired.

Opposition Arguments

Hemani's legal team, represented by attorneys Naz Ahmad and Erin Murphy, argued:

• There is no historical tradition in the US of stripping individuals who consume an intoxicant a few times a week of the right to keep a firearm for self-defense
• The law lacks clarity, as it does not define "unlawful user" of drugs
• Millions of Americans regularly consume marijuana, which is legal in numerous states despite remaining illegal under federal law

Judicial Inquiries During Oral Arguments

During oral arguments on Monday, justices from both conservative and liberal ideologies raised questions about the law's breadth:

• Justice Neil Gorsuch questioned whether an individual using a marijuana gummy bear every other day should be disarmed for life, citing historical figures like John Adams and James Madison who consumed alcohol regularly
• Justice Amy Coney Barrett noted the law's broad scope encompasses all federally classified controlled substances, including prescription medications, and questioned whether someone taking a partner's Ambien without a prescription would be covered
• Justice Ketanji Brown Jackson questioned the practicality of applying the Bruen historical test in this case
• Justice Samuel Alito noted that many drugs today, including heroin, methamphetamines, fentanyl, and significant marijuana consumption, did not exist or were not prevalent at the time of the founding
• Chief Justice John Roberts questioned whether Hemani's argument could apply to other prohibited drugs like PCP and amphetamines
• Justice Elena Kagan raised a hypothetical about ayahuasca, an intense hallucinogen, suggesting a congressional reason to ban guns when "reality dissolves"

Unusual Alliances

The case featured unusual political alignments:

• The Trump administration defended the firearm restriction, supported by gun-control organizations including Everytown for Gun Safety and the Brady Center to Prevent Gun Violence
• The National Rifle Association (NRA), Gun Owners of America, and the American Civil Liberties Union (ACLU) opposed the restriction
• Advocates for marijuana reform, including the National Organization for the Reform of Marijuana Laws (NORML), supported Hemani's position

Reactions

"The court has sent a strong message that the government cannot criminalize the conduct of large numbers of people by making categorical and unfounded assumptions about whether they are dangerous."
— Cecillia Wang, Legal Director of the ACLU

Aidan Johnston, director of federal affairs for Gun Owners of America, contended that founding-era militias commonly consumed substances and that historical figures like Thomas Jefferson owned firearms while using drugs such as opium and cocaine.

Douglas Letter from the Brady Center to Prevent Gun Violence emphasized the necessity of maintaining clear rules for the national background check system.

Legal Landscape

State vs. Federal Discrepancy

Roughly half of US states have legalized small amounts of marijuana for recreational use, and more allow medical use. Former President Trump signed an executive order to expedite the reclassification of marijuana, which could increase research but not federally legalize it. This creates what Justice Clarence Thomas in a 2019 opinion described as a "half-in, half-out regime," where federal law conflicts with growing state-level acceptance of cannabis.

Lower Court History

A federal district court in Texas initially dismissed the charge against Hemani, a decision upheld by the 5th US Circuit Court of Appeals. The appeals court found that historical records support limits on presently intoxicated individuals carrying weapons but not disarming a sober person based solely on past substance usage.

Related Rulings

Earlier on Monday, the Supreme Court declined to review several cases questioning whether the same law could disarm Americans convicted of non-violent felonies. These included an appeal from Melynda Vincent, convicted of bank fraud for a $498.12 bad check.