New South Wales Consolidated Acts(cf ICAC Act s 17)
(1) The Commission is not bound by the rules or practice of evidence and can inform itself on any matter in such manner as it considers appropriate.
(2) The Commission is required to exercise its functions with as little formality and technicality as is possible, and, in particular, the Commission is required to accept written submissions as far as is possible and hearings are to be conducted with as little emphasis on an adversarial approach as is possible.
(3) Despite subsection (1), section 127 (Religious confessions) of the Evidence Act 1995 applies to any hearing before the Commission.