Evidence
15.—(1) Evidence before a Commissioner may be given orally or, if the persons entitled to be heard consent or the Commissioner so orders, by affidavit, but the Commissioner may at any stage of the proceedings make an order requiring the personal attendance of any deponent for examination and cross-examination.
(2) A Commissioner may require evidence to be given on oath, and for that purpose he shall have power to administer oaths and take affirmations.
(3) The Clerk shall have power to administer oaths and take affirmations for the purpose of affidavits to be used in proceedings before a Commissioner.