The U.S. Supreme Court has issued a major ruling that could reshape the debate around gun rights and marijuana use for years to come. In a unanimous decision handed down on June 18, 2026, the Court ruled that the federal government cannot prosecute someone for possessing a firearm based solely on their marijuana use.

The case, "United States v. Hemani," centered on a federal law that has been on the books since 1968. That law makes it a felony for anyone considered an "unlawful user" of a controlled substance to possess a firearm. For decades, federal authorities relied on that provision to charge people who used marijuana, even in states where cannabis had become legal.

However, the ruling does not erase the law entirely. It does, however, place strict limits on how it can be enforced. More importantly, it signals that broad assumptions about marijuana users may no longer be enough to justify taking away constitutional rights.

The dispute began with Ali Danial Hemani, a Texas resident and dual U.S. and Pakistani citizen. Federal investigators searched his home during an investigation connected to his travel history and family connections. Authorities found a Glock 9mm pistol along with small amounts of marijuana and cocaine.

Despite the investigation, Hemani was never charged with terrorism related crimes. Prosecutors also did not claim he was under the influence of drugs when agents found the firearm. Instead, the government charged him under the Gun Control Act of 1968 for possessing a gun while being an unlawful user of marijuana.

Court records showed that Hemani told investigators he used marijuana regularly, reportedly about every other day. Federal prosecutors argued that this admission alone made his gun possession illegal under federal law. Hemani challenged that position. He argued that stripping him of his Second Amendment rights based solely on marijuana use violated the Constitution.

Why the Supreme Court Rejected the Government's Argument

Quach / Pexels / Lawyers argued that habitual drug users could be compared to habitual drunkards from earlier periods of American history.

The justices were not convinced. Writing for a unanimous Court, Justice Neil Gorsuch said the government failed to prove that prosecuting Hemani fit within America's historical tradition of firearm regulation.

The decision relied on the legal framework established in the Court's 2022 ruling in "New York State Rifle & Pistol Association v. Bruen." Under that standard, firearm restrictions must be supported by historical examples that closely resemble the regulation being challenged.
Justice Gorsuch concluded that the government had not met that burden. "The government has failed to carry its burden," Gorsuch wrote, finding no historical tradition that supported disarming people solely because they used marijuana.

The Court questioned the logic of treating millions of marijuana users as inherently dangerous simply because they consume cannabis.

The Ruling Has Important Limits

Pris / Pexels / Millions of Americans now live in states where marijuana can be purchased legally. At the same time, federal firearm laws still treat marijuana users as prohibited persons.

The decision is narrower than some supporters and critics initially suggested. The Supreme Court did not strike down the entire federal law. It also did not create an unlimited right for every drug user to possess firearms.

Instead, the ruling focused on one specific issue. The Court found that marijuana use alone is not enough to justify a criminal prosecution for gun possession. Justice Gorsuch went out of his way to emphasize the limits of the decision. He noted that the Court was not deciding questions involving drug addiction, intoxication, or individuals who present a clear danger to others.

A person who is actively impaired while handling a firearm could still face legal consequences. Likewise, prosecutors may still pursue cases against individuals who pose a specific threat and where evidence supports that conclusion.

The ruling arrives during a period of rapid change in cannabis policy. More states continue to legalize marijuana, while public attitudes toward cannabis have shifted dramatically over the last two decades. Federal law, however, has struggled to keep pace.