72. Section 934 of the Principal Act is amended, in subsection (9)—
(a) by the substitution of “whose member is or has been the subject of an investigation” for “whose member has been the subject of the investigation”, and
(b) in paragraph (a), by the substitution of “the determination of the amount of costs so incurred by it” for “the determination of the amount of costs so defrayed by it”.