As to the circumstances on the basis of which the Anshun principle should apply, or not apply, in the case of settlements, Lord Bingham of Cornhill said at 33:
"The question of whether the parties to the settlement of WWH's action (relevantly, Mr Johnson and GW) proceeded on the basis of an underlying assumption that a further proceeding by Mr Johnson would not be an abuse of process and whether, if they did, it would be unfair or unjust to allow GW to go back on that assumption. In my judgment both these conditions were met on the present facts. Mr Johnson was willing in principle to try to negotiate an overall settlement of his and the company's claims but this was not possible in the time available and it was GW's solicitor who said that the personal claim 'would be a separate claim and it would really be a matter for separate negotiation in due course'."
9 I do not attempt to trace in this interlocutory judgment the history of the Anshun doctrine in Australia since the decision of that case. I shall mention only that in Tanning Research Laboratories Inc v O'Brien (1990) 169 CLR 332 Brennan and Dawson JJ (at 344) expressed the view that the Anshun principle would not necessarily prevent a party from litigating a claim which it might or even should have brought by counterclaim in an earlier proceeding. That is of some relevance in this matter. Also in Johnson supra Lord Bingham of Cornhill (at 31) emphasised it does not automatically flow from the fact that an issue could have been raised in earlier proceedings that it should have been raised.
10 In this case, the only process which had been filed was the plaintiff's summons for the withdrawal of caveats. This was heard on an urgent basis. The hearing was in a sense a final hearing, at least of the claim for withdrawal of caveats, but the proceeding was in reality interlocutory in its nature, and the time for the propounding of the defendants' claims had not yet come, as was indeed acknowledged by the inclusion of a direction for the filing of a cross claim in the orders by which Barrett J otherwise put into effect the settlement achieved on that day.
11 I bear in mind the interlocutory nature of the proceedings of last Friday. I bear in mind the urgency with which they were heard, the matter having been commenced only three days previously. I bear in mind the exiguous evidence before me as to what occurred and what was debated before Barrett J, as well as the fact that that debate was peremptorily determined by that settlement. I find it impossible to come to the conclusion, in the circumstances, that there was an assumption by both parties that all possible matters between them by way of interlocutory relief were to be determined by the orders for withdrawal of caveats made on that day, subject to the setting aside of some $900,000, being the sum offered by the plaintiff in his summons. I find it equally impossible to conclude that it can be said that the defendants, on the run, as it were, should have brought forward all heads of interlocutory relief that they might claim so as to be precluded from subsequently making out a case for more ample interlocutory protection, as is now claimed by the first defendant. The interlocutory relief sought by the first defendant will, therefore, not be refused on that ground.
12 In my view, the first defendant has made out, in the requisite way, an arguable claim for a constructive trust over the property, as he alleges, and for lendings by the first defendant and the second defendant as alleged. The second defendant is, of course, not a party to the present application, but unless provision is also made for payment of the second defendant's claims, the money available to satisfy the first defendant's claims, whether proprietary or in debt, is likely to be reduced. The first defendant says that is his apprehension. In relation to the arguable cases, I should say that, whilst the first defendant's affidavits cover in some detail the relationship between the parties, the plaintiff's affidavits are quite short, having clearly been prepared in the first instance for the caveat application. They have not been amplified in the proceedings before me heard yesterday and today. The first defendant says that he did not sign written agreements concerning the joint venture that were tendered to him for signature on behalf of the defendants and that that was because those documents did not correctly reflect any agreement that there was between the parties. He has not to date denied (although, no doubt, he may subsequently deny) the conversation deposed to by the first defendant as to the parties all having a beneficial interest in the Seaforth property. However, if he had placed a denial on oath, that would not alter the situation; it would simply raise a conflict of fact which could and would not be resolved on an application such as the present. In the case of the debts, he has partly admitted and partly denied them and, of course, that matter equally will not be determined on this application.
13 The first defendant's apprehension of dispersal of the funds (or property into which funds may be translated) arises, he says, from dishonest or deceitful or unfrank dealings with him and the second defendant by the plaintiff. He was aware that the plaintiff, as the registered proprietor, was intending from about November last year to sell the Seaforth property. However, he was not frankly apprised of the steps taken to sell it and was told by the first defendant that the expected price was $2 million only a few days before a price of $3.1 million was obtained. Furthermore, the evidence indicates that the plaintiff raised an additional $250,000 under a mortgage of the Seaforth property and disbursed those moneys without informing the defendants of this fact, which he would certainly be obliged to do, if they were, as they allege, his co-owners beneficially of the property. Equally, he and his wife engaged in a transaction relating to the purchase of the Somersby property as early as 24 December 2002. On that day the plaintiff's wife exchanged a contract for the purchase of that property for $780,000 and paid a $39,000 deposit in respect of it. The plaintiff has deposed in an affidavit that he intended from that time to purchase that property and to employ proceeds from the sale of the Seaforth property in its purchase. The contract in favour of the wife was novated to the plaintiff and the wife jointly on 30 March 2003. It was only late in the day that the existence of this transaction, the identity of the purchasers and the intention to use funds from the Seaforth property in the purchase of the Somersby property was revealed to the defendants. I should add that there has been today no evidence by the plaintiff justifying or explaining his behaviour in relation to the transactions with the Seaforth property and the Somersby property that I have just mentioned.
14 On all the evidence, including the circumstances which I have set out in [13], I am of the view that the test stipulated in the Patterson case has been fulfilled. There is, therefore, a case under the proprietary claim and under the Mareva claim together for funds up to $1.4 million to be held aside by appropriate restraint until the rights between the parties are determined.
15 The first defendant would be under great hardship if the available funds were unrestricted in the hands of the plaintiff and were dispersed so that the benefit of any judgment obtained by him (bearing in mind the potential necessity to meet a judgment in favour of the second defendant) were lost. The plaintiff would be under great hardship if restrained, as was originally asked by the first defendant, from completing the sale of the Seaforth property and the purchase of the Somersby property. However, I do not intend to restrain those transactions and suitable relief can be moulded that does not prevent their completion. If those transactions can be completed, there is no evidence before me that would suggest that any hardship would be imposed on the plaintiff by the granting of the restraint that I propose.
16 The situation is an unusual one, in that the overall interlocutory regime depends in part upon proprietary relief and in part upon Mareva relief. Bearing in mind that, on the evidence, as I understand it, the plaintiff will have available to him after the settlements some $100,000 in addition to the sums he needs to settle the Somersby transaction, I do not at this stage, build in any right to use part of the moneys frozen, such as is incorporated conventionally in Mareva relief. But, allowing for the fact that the relief to be granted is supported in part at least on Mareva grounds, I shall reserve to the plaintiff liberty to apply to vary or discharge the injunctions now granted.
17 The orders I propose are: