Consideration and decision
15 DFAT does not contend that the two documents in question are in a class of documents whose members are entitled to protection from disclosure irrespective of their contents. The arguments advanced on behalf of DFAT recognise and accept that both the relevance and public interest immunity bases for resisting production must be sustained by reference to the contents of the documents.
16 As far as the objection based upon relevance is concerned, DFAT accepts that each of the documents was required to be produced under the terms of the amended subpoena. However, it was submitted on behalf of DFAT that, were I to be satisfied that the material which has been masked is irrelevant to any of the issues raised in the proceeding, the most convenient way of properly protecting DFAT's interests and the interests of others who might be affected if the contents of the documents were disclosed, was to continue to permit the irrelevant portions to be masked. It seems to me that, in principle, this approach is perfectly acceptable as one way of giving effect to the control which the Court is required to exercise at the second stage of the process involved in compulsorily requiring the production of documents to the Court (as to which see National Employers' Mutual General Association Limited v Waind and Hill (1978) 1 NSWLR 372 at 382-384).
17 At [51] in Watson v AWB Limited (No 2) 259 ALR 524, I said:
Where an objection to the production of documents in answer to a subpoena is based upon a claim of public interest immunity, the usual practice - established many years ago - has been for the grounds of the claim to be set out and explained in an affidavit made by either the Minister who is the political head of the particular department concerned or the Secretary of that department (Sankey v Whitlam (1978) 142 CLR 1 at 43). The weight to be afforded to that affidavit is governed to some degree by the extent of the knowledge which the deponent possesses concerning the documents which are the subject of the claim (Sankey v Whitlam 142 CLR at 44). The knowledge of those documents which must be considered comprises not only knowledge of the contents of the documents but also knowledge of the circumstances in which they came into existence. When the claim is based partly or wholly on national security grounds, very considerable weight must be given to the views of the responsible Minister or the permanent head. In the present case, because we live in dangerous times and matters of national security are at the forefront of the ONA's responsibilities, very considerable weight must be given to the views of the Director-General expressed, as they were, on his oath (Alister v The Queen (1984) 154 CLR 404 at 435).
18 In the present case, DFAT is content that I move straight to the second stage contemplated by the authorities (as to which, see Sankey v Whitlam (1978) 142 CLR 1 at 46 (per Gibbs ACJ); at 65 (per Stephen J) and at 96 (per Mason J); and Alister v The Queen (1984) 154 CLR 404 at 412 and at 414-415 (per Gibbs CJ); and at 453-457 (per Brennan J)) and determine the application after having inspected the two documents in question. As I have already mentioned at [7] above, I have inspected the documents.
19 Mr Thwaites did not testify that he had read the documents. He did not provide evidence to the Court of the circumstances in which the documents were created and was, in any event, not qualified to do so. Nor, it seems to me, was Mr Thwaites really qualified to provide evidence to the Court as to the prejudice and danger to Australia's international relations that might be caused by disclosure of those portions of the two documents in question which have been masked.
20 For the reasons stated in [19] above, I propose to give the evidence of Mr Thwaites little or no weight. In truth, that evidence did not rise much higher than a submission made on behalf of DFAT.
21 Further, I think that it is significant that neither the Minister nor the permanent head of DFAT nor a senior official within DFAT who has knowledge of the relevant circumstances provided any evidence to the Court as to the likely damage that would be caused to Australia's international relations should the documents be disclosed.
22 The appropriate course, nonetheless, is for me to undertake the balancing exercise of which I spoke at [54] and [55] in Watson v AWB Limited (No 2) 259 ALR 524. The competition is between the public interest in withholding production in order to avoid harm to the nation or the Public Service, on the one hand, and the public interest in requiring production in aid of the administration of justice, on the other hand.
23 At [39]-[44] in Watson v AWB Limited (No 2) 259 ALR 524 I described the forensic purpose stated by AWB as being served by the production of documents of the kind then under consideration. It is not necessary for me to set out in full what I said in those paragraphs. It is sufficient for present purposes for me to note that AWB wishes to contend that DFAT had knowledge of the nature and extent of the payments made by AWB which the applicants assert were concealed. AWB relied upon the stated forensic purpose which I described at [39]-[44] in Watson v AWB Limited (No 2) 259 ALR 524 as supporting its claim for disclosure of the two documents which are under consideration in the present application.
24 I propose to deal with each of the documents separately.