The Supreme Court is scheduled to hear a challenge to Cook County’s assault weapons ban on Dec. 2.

The case concerns a county ordinance adopted in 1996 that prohibits the sale, possession and transfer of assault weapons and magazines holding more than 10 rounds. The court indicated at the end of its spring session that it would take up the challenge.

Cook County State’s Attorney Eileen O’Neill Burke said Wednesday that her office is preparing a defense with constitutional scholars, Second Amendment experts, veteran litigators and gun safety organizations. Burke said the outcome could affect gun safety laws across the country.

The justices are also taking up a challenge to Connecticut’s ban on AR-15s, enacted after the Sandy Hook Elementary School shooting that killed 26 children and educators.