SPRINGFIELD – A group of firearms dealers along with the Illinois State Rifle Association filed a lawsuit this week seeking to overturn a new state law that imposes new, stringent requirements on firearms dealers in the state, alleging that it violates both the Illinois Constitution and the state’s Administrative Procedures Act. The law, known as the Firearm Dealer License Certification Act, requires that any gun dealer in Illinois who is required to have a federal firearms license must also obtain a state license.