28 As we have determined to grant leave, it is appropriate that we only give brief reasons for our conclusion. The decision of the trial judge raises important issues about the scope of s 130 of the Evidence Act 2008, including, in particular, the meaning of the expression 'matters of state'. Analysis of the judgment also may require consideration of the extent to which, if at all, common law principles governing public interest immunity are still relevant, and applicable, to claims of that kind. We have also taken into account the fact that the State of Victoria listed the documents in its Affidavit of Documents when giving discovery, with no suggestion that parts of them might not be relevant. This called into question whether her Honour correctly identified the issues in the proceeding when she concluded, in general terms, that the redacted portions of the documents that were sought were not 'relevant'.