Except as permitted by Article I, Section 4 of the California Constitution and by state law, it is unlawful for any person to permit, allow, or host a party, gathering, or event at his or her place of residence or other private property, place or premises under his or her control where three or more persons under the age of twenty-one years are present and alcoholic beverages are being possessed or consumed by one or more persons under the age of twenty-one years at that location. A violation of this section is a misdemeanor and deemed to be a threat to the public peace, health, safety, and general welfare and is therefore subject to second response cost recovery pursuant to Section 9.21.050. (Ord. 1525 § 2, 2009)