§ 133.12 LAWFUL ASSEMBLY AND PETITION FOR REDRESS NOT PROHIBITED.
   Nothing in §§ 133.10 through 133.12 prevents lawful assembly of the trustees, school board members, superintendent, principal, employees, students, or invitees of a public institution of education, or prevents orderly petition for redress of grievances.
(ILCS Ch. 720, Act 5, § 21.2-3)