s 23 Evidence.
(1) The Commissioners may, in any case where a declaration is required under this Part of this Act, require the declaration to be confirmed by an affidavit before the Comptroller-General or officer appointed for the purpose by the Commissioners, or before a justice of the peace or magistrate. (2) Where a declaration is required to be produced under this Part of this Act for the purpose of receiving an annuity, an affidavit may be produced in lieu thereof. (3) Where any evidence is produced by any person for the purpose of the . . . receipt of an annuity which is not strictly conformable with the provisions of this Part of this Act, the Commissioners may admit such evidence if it appears satisfactory. (4) The Commissioners or the Comptroller-General or any officer appointed for the purpose by the Commissioners may administer oaths for the purposes of affidavits under this Part of this Act.