In any proceedings in any way relating to or arising from the obtaining of, or any attempt to obtain, any consent, the Commissioner—
(a)
shall have the right to be present and be heard solely for the purpose of calling evidence on any matter (including evidence in rebuttal) that should be taken in account in determining the proceedings:
(b)
may examine, cross-examine, and re-examine witnesses:
(c)
may be represented by counsel or by any duly authorised representative—
but shall have no greater rights than parties to the proceedings in respect of the calling of evidence or evidence in rebuttal, or in respect of the examination, cross-examination, and re-examination of witnesses.