It is a general precept of law that an issue between parties should, subject to appeal, be determined by a court once and for all. This precept finds expression in the principle of res judicata, in the extended principle expressed by Wigram VC in Henderson v Henderson [1843] EngR 917; (1943) 3 Hare 100; 67 ER 313 and discussed by the High Court of Australia in Port of Melbourne Authority v Anshun Pty Ltd [1981] HCA 45; (1981) 147 CLR 589 and in the principle of issue estoppel as enunciated by Dixon J in Blair & Perpetual Trustee Co Ltd v Curran [1939] HCA 23; (1939) 62 CLR 464 at 531 532.
In the present case, the principle of res judicata [does] not apply because the application to the Land and Environment Court was brought from a fresh decision of the Kogarah Municipal Council. There was a new cause of action. The principle of issue estoppel is also difficult to apply in the field of town planning. In a case such as the present, it may be difficult to find a point of fact which should be determined once and for all. Circumstances change. The issue whether a development is consistent with a zoning may turn upon the facts as they exist when the issue comes to be decided.
Nevertheless, it is an abuse of process for an applicant to bring repeated applications to a Court, such as the Land and Environment Court, seeking to reagitate issues which have as a matter of substance already been determined in prior decisions.
The application of this principle is not precluded by the making of some minor changes to a town planning application or by reliance upon an argument or arguments which could have been put [but] were not previously put. If there has been no significant change in circumstances, the new application ought not to be brought. Otherwise, the application will appear to be a collateral attack upon the prior decision or decisions of the Court. (emphasis added)
In Deputy Commissioner of Taxation v Edelsten (unreported, Federal Court, Burchett J, 10 March 1988), Burchett J discussed many of the authorities dealing with abuse of process. Subsequently, in Wiest v Director of Public Prosecutions [1988] FCA 450; (1988) 23 FCR 472 at 486 487, his Honour said:
'In Deputy Commissioner of Taxation v Edelsten, I discussed, in the context of s 55 of the Bankruptcy Act 1966 (Cth), a number of the leading authorities with respect to abuse of process. I concluded that "These authorities unite in seeing as crucial the purpose for which the process is sought. It is the illegitimacy of the purpose that makes the abuse". If this is the root from which the principle grows, the reason why repeated applications may be an abuse of process is that the process was not intended to be used to achieve the purposes involved in some cases of repeated applications.'
In my opinion, the subject application to the Land and Environment Court was an abuse of process. The trial judge used the expression res judicata. That was an error. But the substance of the points made by his Honour was that the application was an abuse. With this I agree.
The appellant was seeking to reagitate matters which had earlier been rejected by Assessor Nott, Assessors Bly and Bull, Justice Bignold and Justice Pearlman. The application was in substance a collateral attack upon the earlier decisions.
The trial judge was correct in holding that it should be struck out. I agree with the orders proposed by Stein JA.