No person shall be in or remain on any part of any public school or public school playground area fenced in or provided with gates, between the closing of the gates at night and their reopening on the following day; nor shall any person be in or remain on property on which a public school is located or public school playground not fenced in or provided with gates between the hours of 9:30 p.m. and 6:00 a.m. on the following day unless written authorization is granted by the general superintendent of schools. The board of education of the City of Chicago shall place, maintain and display written notice that the presence of any person is forbidden in accordance with this section.
(Prior code § 37-9.3)