The U.S. Supreme Court has agreed to hear a case that could reshape criminal trials across the country by deciding whether states can continue using six-person juries in felony cases. The ruling could impact thousands of convictions and redefine how courts interpret the Sixth Amendment’s guarantee of a jury trial.

The case originates from Florida, where a defendant convicted by a six-person jury challenged the state’s practice of using smaller juries for non-capital felony offenses. The challenge argues that the Constitution’s original meaning guaranteed a traditional 12-person jury and that modern courts should follow that historical understanding.

At the center of the dispute is Williams v. Florida (1970), a Supreme Court decision that upheld six-person juries based on a cost-benefit analysis. The current case asks the Court to reconsider that precedent in light of its more recent originalist decisions, including Ramos v. Louisiana, which reinforced the importance of historical constitutional interpretation.

If the Supreme Court overturns Williams, states that currently allow six-person felony juries could face significant legal challenges, and past convictions may come under renewed scrutiny. The decision could become one of the most important Sixth Amendment rulings in decades, with nationwide implications for criminal justice and constitutional rights.