(5) Without limiting the matters that the court may take into account for the purposes of subsection (1), it is to take into account the following matters:
(a) the importance of the information or the document in the proceeding;
(b) if the proceeding is a criminal proceeding - whether the party seeking to adduce evidence of the information or document is a defendant or the prosecutor;
(c) the nature of the offence, cause of action or defence to which the information or document relates, and the nature of the subject matter of the proceeding;
(d) the likely effect of adducing evidence of the information or document, and the means available to limit its publication;
(e) whether the substance of the information or document has already been published;
(f) if the proceeding is a criminal proceeding and the party seeking to adduce evidence of the information or document is a defendant - whether the direction is to be made subject to the condition that the prosecution be stayed.
(6) A reference in this section to a State includes a reference to a Territory. "
16 In my opinion, reliance on s130 is misconceived. S130 is directed to the admission into evidence of information or a document. Production of documents or other items on subpoena is far removed from (although sometimes preliminary to) admission into evidence: Esso Australia Resources Ltd v Commissioner of Taxation of the Commonwealth of Australia [1999] HCA 67; 201 CLR 49. The claim for privilege is to be determined by reference to common law principles. Those principles may be briefly stated. Production will not be required of documents, although relevant and otherwise admissible, if it would be injurious to the public interest to disclose them: Sankey v Whitlam (1978) 142 CLR 1 at 38, per Gibbs ACJ. Put another way, the relevant question is:
"… would the public interest be best served and least injured … by compelling or by refusing to compel disclosure to the Court of the information and of the documents sought by the subpoena?" ( Alister v The Queen (1984) 154 CLR 404 at 453, per Brennan J.)
17 In both of these cases it was recognised that, when such an issue arises, the court is required to consider two conflicting aspects of the public interest, those being harm done by the production of the documents against the fair and efficient administration of justice: see Alister, p 412, per Gibbs CJ.
18 It is essential to the application of the principles that the documents or evidence involved relate to the conduct of governmental functions: R v Young [1999] NSWCCA 166; 46 NSWLR 681. Here, there is no question but that the documents sought fall into that category.
19 It is open to the court itself to inspect the documents in order to make the necessary evaluation: Alister, p 416, p 431, p 453.
20 Both Blackmore DCJ and all members of this Court did inspect the documents confidentially produced.
21 After hearing some argument in open court, the court was closed in order to allow a more frank discussion of the matters deposed to in the affidavit and in the written submissions. The applicant and his legal representatives, together with the Crown Prosecutor in the trial, his junior and his instructing solicitor, were excluded from this procedure. That part of the procedure was recorded in a separate transcript.
22 Senior counsel who appeared for the Commonwealth urged that, in the event that this Court upheld the Commonwealth's claim and dismissed the appeal, it should give no reasons for its decision. I would reject this submission in the wide terms in which it was framed. I accept that it would be inappropriate, in giving reasons for a decision, whether in favour of or against the applicant, to disclose any material as to which confidentiality is sought. That does not mean that no explanation can be given.
23 In the absence of informed argument on behalf of the applicant, it is difficult for this Court to evaluate the importance to the applicant's case of the material which it has read. I would merely observe that it is not readily apparent to me that the documents have any significance or importance that would assist in the resolution of the issues of the trial, as they have been explained to us; certainly they give no indication, on their face, that they would afford any assistance to the applicant. I say that, however, conscious that this Court is not fully aware of the detail of the prosecution allegations, the applicant's responses to them, or the evidence to be adduced. It is entirely possible that, contained in the documents, is some information that may have a bearing on some aspect of the prosecution case, or the defence response, or one or more of the witnesses on whom the prosecution will rely. There may be significance in the documents lost upon members of a court who do not have access to the contents of counsels' briefs.
24 Before proceeding to the balancing exercise required by the application of the authorities to which I have referred, I would mention one other curious feature of this proceeding. The application before this Court is an application pursuant to s5F of the Criminal Appeal Act for leave to appeal against what was, essentially, a discretionary decision. (I say it is discretionary because Blackmore DCJ purported to exercise a discretion under s130 of the Evidence Act. The correct exercise, in my view, was a balancing exercise, weighing the two conflicting aspects of the public interest, which, of itself, is not, but is analogous to, a discretionary judgment. In any event, the determination to set aside a subpoena on that basis is, in essence, a discretionary decision.)
25 Ordinarily, an applicant for leave to appeal under s5F would be required to establish error in the process undertaken by the primary judge, in the sense explained in House v The King (1936) 55 CLR 499. Here, it was accepted by the Commonwealth that the absence of reasons and the withholding of the factual basis for the claim from the applicant and his legal advisers rendered that requirement inappropriate. In practical terms, it is necessary that this Court perform its own evaluation task and exercise its own discretion independently of what was done by the primary judge.
26 I have read the confidential affidavit. Its contents are persuasive. It establishes (so far as an untested affidavit may do so) that more harm would be done to the public interest by disclosure of the material sought than would be done to the administration of justice by its being withheld. It would be inappropriate to say more than that. In reaching that conclusion, I have been influenced by the absence of any obvious usefulness of the material to the applicant in his defence of the charge. I make that comment, with reservations as outlined above.
27 In my opinion, leave to appeal the decision of Blackmore DCJ should be granted, but the appeal should be dismissed.