(1) Section 18 of the Principal Act is hereby amended by -

(a) the substitution for subsection (1) of the following subsection:

"(1) The Board may authorise in writing such and so many persons as it considers necessary to be authorised persons to inspect or investigate on its behalf the state and conduct of a scheme.",

(b) the substitution for subsection (3) of the following subsections:

"(3) An authorised person shall be furnished with a certificate of his appointment as an authorised person and when exercising any power conferred on him by this section as an authorised person shall, if requested by a person affected, produce the certificate or a copy thereof to the person.

(3A) An authorised person, for the purpose of obtaining any information which may be required by the Board in relation to a scheme, may -

(a) at all reasonable times enter the premises of any employer, trustee or agent, as the case may be,

(b) make such examination or inquiry as may be necessary to determine whether the provisions of this Act are being or have been complied with,

(c) inspect and take copies of or extracts from any records (including in the case of information in a non-legible form a copy of an extract from such information in permanent legible form) relating to the scheme,