Subject to section 17(1), where it appears to the bishop of a diocese, whether of his own motion or on the advice of the Commission or on the basis of an allegation made by another person, that the Chapter of the cathedral of the diocese may have committed or be intending to commit an act in contravention of section 2, he shall, as soon as practicable and before taking any further action, afford to the members of the Chapter an opportunity of being interviewed in private by him with respect to the matter in question.