This action was brought by gun show promoters to challenge an Alameda County ordinance prohibiting the possession of firearms and ammunition on county-owned property. Plaintiffs have appealed to the U.S. Court of Appeals for the Ninth Circuit an order of the district court granting the County's motion for summary judgment on plaintiffs' as-applied challenge under the First Amendment to the U.S. Constitution. LCAV filed this amicus brief in support of Alameda County.