(1) In any proceeding
before the Tribunal, the Tribunal may —
(a) on
its own initiative, call any person to give evidence; and
(b)
examine any witness on oath or affirmation, or by use of a statutory
declaration; and
(c)
examine or cross-examine any witness to such extent as the Tribunal thinks
proper in order to elicit information relevant to the exercise of the
functions of the Tribunal in the proceeding; and
(d)
compel any witness including a witness whose conduct is subject to an inquiry
(whether or not the witness has been summoned to appear) to answer questions
which the Tribunal considers to be relevant in the proceeding.
(2) Nothing in
subsection (1) enables the Tribunal to compel a witness to answer a question
if the witness —
(a) is
excused by section 69(1) from answering the question; or
(b) has
a reasonable excuse (other than on the ground mentioned in section 68(1)) for
refusing to answer the question.