Under existing law, an adult who has control of a residence and who has authorized an open house party at the residence and is in attendance at the party is prohibited from allowing the party to continue if the adult knows that alcoholic beverages or illegal drugs are being illegally consumed by persons under 21 years of age. This bill would delete the requirement that the adult in control of the residence be in attendance at the party and would provide that a law enforcement officer, upon a call to the residence, may enter the premises based on a reasonable suspicion of a violation of law.