It is unlawful for any person to introduce upon, or have in his or her possession upon, or in, any school ground or any schoolhouse or school building any alcoholic beverage, except for experiments in laboratories and except for those organizations who have been issued temporary licenses to sell 3.2% malt liquor, and for any person to possess 3.2% malt liquor as a result of a purchase from those organizations holding temporary licenses.
(`80 Code, § 5.16) Penalty, see § 1.99