CHICAGO -attorneys general who filed an amicus brief in support of a Washington state initiative regulating the sale of semiautomatic assault rifles.

Raoul and the coalition filed the brief in the U.S. Court of Appeals for the 9th Circuit in support of Washington in Mitchell v. Atkins. Raoul and the attorneys general argue that states have the right to enact reasonable firearm regulations that protect public safety and reduce the prevalence of gun violence. The coalition argues that this includes passing regulations to ensure that only individuals who are likely to use firearms responsibly are able to access them.

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“States have a responsibility to protect their residents from gun violence, and implementing age-based sales restrictions and background checks have been shown to be effective methods in doing so,” Raoul said. “Regulations like these are used in states across the country to prevent dangerous weapons from falling into the hands of individuals who will not use them responsibly. I am committed to defending the ability of states to enact commonsense firearm regulations that will help protect communities from gun violence.”

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In 2018, the people of Washington passed Initiative Measure No. 1639, which imposed new rules on sales of semiautomatic assault rifles, including an age requirement on semiautomatic assault rifle sales, a requirement that local law enforcement agencies conduct enhanced background checks on prospective purchasers and a prohibition on the in-person sales of semiautomatic assault rifles to nonresidents. In 2019, a group of firearms dealers and prospective purchasers who did not meet the age requirement filed a lawsuit, alleging that Washington’s measure infringed on their Second Amendment rights and violated the dormant Commerce Clause. The district court ruled against the plaintiffs, and they appealed to the 9th Circuit.

In the amicus brief, Raoul and the coalition argue that states have the responsibility and power to protect their residents by promoting safety, preventing crime and minimizing gun violence. Additionally, states can enact specific regulations that are best tailored to their residents’ needs. These regulations include restrictions that prohibit the sale of firearms based on the purchaser’s age, which are found in all 50 states. For example, Illinois prohibits the sale of long guns, including semiautomatic assault rifles, and handguns to those under the age of 21. Restrictions of this kind have repeatedly been upheld by courts throughout the country as a way to deter crime and promote public safety.

Raoul and the coalition also argue that states can also permissibly promote public safety by restricting in-person sales of firearms to state residents, as Washington has. Restricting the in-person sales of semiautomatic assault rifles to state residents allows states to conduct more robust background checks on those who purchase weapons, and better ensure that only individuals who are likely to use firearms responsibly can use them. Congress already has enacted an identical measure with respect to handguns, limiting the in-person sales of all handguns to the residents of a dealer’s home state. Raoul and the attorneys general point out that Washington’s initiative merely extends that rule to the sale of semiautomatic assault rifles.

Joining Raoul in filing the brief are the attorneys general of California, Connecticut, Delaware, the District of Columbia, Hawaii, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Virginia.

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