21 The respondent, on the other hand, submitted the 1965 incident was probative to the assessment of risk and should be considered by the Commission as being relevant. Further, the respondent submitted, the onus was upon the applicant to establish that the information about the incident was improperly or illegally obtained and that the applicant had failed to discharge that onus. The respondent submitted that even if the Commission were satisfied the applicant had discharged the onus upon it in this regard the Commission should exercise its discretion to admit the evidence improperly obtained. The respondent referred to the provisions of s 138 of the Evidence Act 1995. The applicant submitted that as the rules of evidence do not apply in proceedings before the Commission, s 138 of the Evidence Act did not apply. This is true, but given the detailed arguments relating to the provisions of s 138 and how they might be applied, I consider it is appropriate in this case to apply the principles of that section in determining whether or not I should admit the information regarding the 1965 incident. Section 138 provides an appropriate benchmark by which to determine the admissibility of improperly obtained evidence. Section 138 is in the following terms:
138 Exclusion of improperly or illegally obtained evidence
(1) Evidence that was obtained:
(a) improperly or in contravention of an Australian law, or
(b) in consequence of an impropriety or of a contravention of an Australian law,
is not to be admitted unless the desirability of admitting the evidence outweighs the undesirability of admitting evidence that has been obtained in the way in which the evidence was obtained.
(2) Without limiting subsection (1), evidence of an admission that was made during or in consequence of questioning, and evidence obtained in consequence of the admission, is taken to have been obtained improperly if the person conducting the questioning:
(a) did, or omitted to do, an act in the course of the questioning even though he or she knew or ought reasonably to have known that the act or omission was likely to impair substantially the ability of the person being questioned to respond rationally to the questioning, or
(b) made a false statement in the course of the questioning even though he or she knew or ought reasonably to have known that the statement was false and that making the false statement was likely to cause the person who was being questioned to make an admission.
(3) Without limiting the matters that the court may take into account under subsection (1), it is to take into account:
(a) the probative value of the evidence, and
(b) the importance of the evidence in the proceeding, and
(c) the nature of the relevant offence, cause of action or defence and the nature of the subject-matter of the proceeding, and
(d) the gravity of the impropriety or contravention, and
(e) whether the impropriety or contravention was deliberate or reckless, and
(f) whether the impropriety or contravention was contrary to or inconsistent with a right of a person recognised by the International Covenant on Civil and Political Rights , and
(g) whether any other proceeding (whether or not in a court) has been or is likely to be taken in relation to the impropriety or contravention, and
(h) the difficulty (if any) of obtaining the evidence without impropriety or contravention of an Australian law.