(a) the powers, authorities,
protections and immunities conferred on a commissioner by Division 1 of Part 2
of the Royal Commissions Act 1923 , and
(b) in the case of a person who is a
Judge of the Supreme Court or whose instrument of appointment under this
section expressly so provides, the powers and authorities conferred on a
commissioner by Division 2 of Part 2 of the Royal Commissions Act 1923
(except for section 17).
(4) If it appears that the character of any person (being a
person who was a witness at the proceedings from which the conviction or
sentence arose) may be affected by the inquiry, the judicial officer must
permit the person to be present at the inquiry and to examine any witness who
attends the inquiry.