(1) If a campus or part of a campus has been closed under regulation 21 , the executive officer or an authorised person is to display, in a prominent position on the campus, a notice specifying (a) that the campus or part of the campus has been closed; and(b) the period of the closure; and(c) the class of persons to which the campus or part of the campus has been closed.(2) A person of a class of persons to which a campus or part of a campus has been closed must not enter or remain on that campus or that part of the campus.Penalty: Fine not exceeding 20 penalty units and, in the case of a continuing offence, a further fine not exceeding 5 penalty units for each day during which the offence continues.(3) A person of a class of persons to which a campus or part of a campus has been closed must immediately leave that campus or that part of the campus, if directed to do so by the executive officer or an authorised person.Penalty: Fine not exceeding 20 penalty units and, in the case of a continuing offence, a further fine not exceeding 5 penalty units for each day during which the offence continues.(4) An offence under subregulation (2) or (3) is not a disciplinary offence.