Storage of firearms in a residence where a minor or person prohibited from possessing a firearm is present; penalty. Provides that any person who possesses a firearm in a residence where such person knows that a minor or a person who is prohibited by law from possessing a firearm is present shall store such firearm and the ammunition for such firearm in a locked container, compartment, or cabinet that is inaccessible to such minor or prohibited person. Under the bill, any person who violates this provision is guilty of a Class 4 misdemeanor. The bill also requires any dealer, as that term is defined in current law, to post a written notice informing the public of the penalty imposed for failure to comply with the bill's provisions.