In a unanimous decision with sweeping implications for Second Amendment law, the Supreme Court ruled that the federal government cannot restrict the gun rights of casual drug users, dealing a significant blow to a decades-old federal statute. The U.S. Supreme Court ruled in favor of a marijuana user on Thursday by limiting the application of a federal law that bars drug users from owning guns, finding that certain prosecutions under the measure intrude on the Constitution's Second Amendment right to "keep and bear arms".

The Case Behind the Ruling

The decision centers on Ali Danial Hemani, a Texas resident. The justices, in a 9-0 ruling, upheld a lower court's decision to dismiss an illegal gun possession charge brought against Hemani, an American-Pakistani dual citizen and resident of Texas who told authorities he was a regular marijuana user. The law makes it a crime for any person who is "an unlawful user of or addicted to any controlled substance" to possess a firearm, and it is the same statute under which Hunter Biden, son of former President Joe Biden, was convicted in June 2024 before his father pardoned him.

Notably, President Donald Trump's administration had defended the law in the case, even as the broader Republican-led court has generally expanded gun rights in recent years.

What the Justices Said

Writing for the court, conservative Justice Neil Gorsuch did not mince words. Gorsuch wrote that the government had not "carried its conceded burden of showing its prosecution of Mr." Hemani was constitutionally justified, while also acknowledging the underlying public safety concern: "We appreciate that drugs and guns can sometimes make for a dangerous mix," Gorsuch wrote in the decision.

Importantly, the ruling stops short of a blanket repeal of the law. Justice Gorsuch noted the government went too far by assuming all regular marijuana users are categorically violent, but the narrowly crafted decision leaves unresolved whether prosecutors can target drug users who are addicted or demonstrably dangerous. In other words, the court rejected a one-size-fits-all approach rather than eliminating the government's authority entirely.

How We Got Here

The case traces back to a 2022 search. Hemani's gun and cocaine were found by the FBI during a search of his home as agents looked into communications allegedly linked to Iran; authorities also found marijuana and a 9mm pistol, leading prosecutors to charge him solely with violating the firearms statute. The New Orleans-based 5th U.S. Circuit Court of Appeals had already dismissed the gun possession charge in 2025, ruling that the firearm ban cannot be applied to people unless they are under the influence of drugs while in possession of a gun. The Trump Justice Department appealed, hoping the Supreme Court would revive a broader "habitual users" standard, but the high court ultimately sided with the lower court's narrower reading.

Why This Ruling Matters

The 1968 Gun Control Act provision at issue carries serious stakes. Those prosecuted under the law can face up to 15 years in prison and a permanent ban on owning firearms. With the court narrowing how it can be applied, federal prosecutors will likely face a higher bar when bringing gun charges against people who use drugs only occasionally, rather than those who are demonstrably addicted or impaired while armed.

The decision also fits into a broader pattern of Second Amendment litigation following the court's landmark 2022 ruling expanding gun rights based on historical analysis. For a detailed look at how the Supreme Court's docket and opinions are tracked in real time, the official Supreme Court of the United States website remains the most authoritative source for opinions, oral argument transcripts, and case filings.

What Comes Next

While Thursday's ruling resolves Hemani's case, it leaves the door open for future litigation. Courts will still need to work out where the line falls between "casual" use and the kind of habitual or dangerous drug use that could justify firearm restrictions. With California and 31 other states maintaining their own laws restricting gun possession by drug users and addicts, this ruling could prompt fresh legal challenges at the state level as well, making it likely that gun rights and drug use will remain a contested constitutional battleground for years to come.