A power conferred by this Part may only be exercised:
(a) for the purposes of the performance or exercise of any of the Registrar's functions and powers under this Act; or
(b) for the purpose of ensuring compliance with this Act; or
(c) in relation to:
(i) an alleged or suspected contravention of this Act; or
(ii) an alleged or suspected contravention of a law of the Commonwealth, or of a State or Territory, being a contravention that concerns the management or examinable affairs of an Aboriginal and Torres Strait Islander corporation or a related body corporate; or
(iii) an alleged or suspected contravention of a law of the Commonwealth, or of a State or Territory, being a contravention that involves fraud or dishonesty and relates to an Aboriginal and Torres Strait Islander corporation or a related body corporate.