Context:

The Supreme Court grappled with whether modern drug users can be disarmed under firearms laws by weighing historical notions of habitual intoxication against today’s drug use norms. Justices debated how to apply long-standing limits tied to ‘habitual’ drinkers to marijuana and other substances, amid questions about evolving classifications and enforcement. The case centers on whether past substance use, even when not current, should justify disarming a sober individual, with implications for millions of users and the scope of federal gun regulation. A ruling could clarify the historical-tradition test that has fueled lower-court confusion and shape future gun-control challenges, with a decision expected by summer.

Dive Deeper:

• Ali Danial Hemani, a dual U.S.-Pakistani citizen, was charged with unlawful gun possession while using marijuana; the case arises after the FBI monitored him for alleged Iran Revolutionary Guard ties, though the charge carries up to 15 years in prison.

• The 5th U.S. Circuit Court of Appeals ruled that the gun ban cannot be applied to Hemani based solely on past substance use; it acknowledged historical limits but said they don’t justify disarming a sober person for prior behavior.

• The government argues that 18th/19th-century notions of habitual drinkers support modern restrictions, citing the long-standing tradition of disarming dangerous individuals regardless of current intoxication.

• Justices questioned whether the law should sweep broadly to include regular drug users rather than focusing on addiction; several asked how to judge current danger when drugs vary in mind-altering effects across substances and over time.

• Justice Gorsuch pressed whether the historical examples (e.g., founding-era drinkers) imply a blanket rule for habitual use, while others highlighted practical concerns about expertise and Congress’s role in defining dangerous use.

• Amy Coney Barrett suggested the government’s theory may not fit every controlled substance, signaling possible narrowing of application if marijuana’s classification evolves; the Court’s decision could redefine how the historical-tradition test is applied.

• A ruling is anticipated by summer and could affirm, narrow, or overrule the 1968 Gun Control Act’s prohibition on firearm possession by unlawful users of controlled substances, with broad implications for gun rights and drug policy.