It shall be unlawful for any person to enter any public school building owned or leased by the City of Baltimore or its agencies without immediately registering at the office of the principal or other designated head of that school. Such registrant shall be required to furnish his name, address, and occupation, and shall state the reason for his presence in the building. In addition, he shall furnish positive identification that he is that person so registering. The provisions of this section shall not apply to teachers, students, or employees at the particular school. Any violation of the provisions of this section shall be deemed a misdemeanor, subject upon conviction to a fine of not more than $500 or to imprisonment for not longer than 6 months or to both fine and imprisonment, in the discretion of the Court. City Code, 1976/83, art. 24, §21 Ord. 69-529