(1) For the purpose of preparing a complaint for submission to the Tribunal, the Registrar or a person authorised by the Registrar may gather further information on the complaint, including by exercising the powers of inspection referred to in section 57.
(3) The notice required by subsection (2)(a) must identify the complainant (if any), unless the Registrar considers that exceptional circumstances justify the withholding of the complainant's identity.