If the Board is of the opinion that:
(a) an interactive film, or computer game, classified on application under section 14 or 17 contains contentious material (whether activated through use of a code or otherwise) that was not brought to the Board's attention in accordance with subsection 14(4) or 17(2) before the classification was made; and
(b) if the Board had been aware of the material before the classification was made, it would have given the film or game a different classification;
the Board must revoke the classification, and must also revoke approval of any approved advertisement for the film or game.