The primary judge's factual findings
6 On the claims against the first defendant, the primary judge preferred the evidence of the appellant to that of the first defendant and found that the funds paid to the first defendant were not dealt with in accordance with the appellant's directions. On the claims against the respondent, the judge accepted, contrary to the first defendant's evidence, that the funds given by her to the respondent were given to him for the purpose of him gambling. The respondent did this, at the Star City Casino in Sydney and the Crown Casino in Melbourne, and to a significant extent lost the funds he received. His evidence was that he returned winnings and any unused amounts to the first defendant. This was denied by the first defendant.
7 The judge's conclusions as to the availability to the respondent of the change of position defence were expressed as follows:
"35 It is clear enough that the expenditure in question here - namely, [the respondent's] gambling expenditure - would not, and indeed could not, have been undertaken, but for the payments in question. In my view, a relevant change in position, sufficient to bring the facts within the defence, is established.
36 However, the defence of change of position is available only to those who act in good faith, that is, in the sense of an actual belief in the security of the receipt [ Lipkin Gorman v Karpnale , 579-580]. Although the second defendant said that at first he assumed that the funds came from his wife, he admitted that at some stage he became aware that she was using funds obtained from her brother. [The respondent] was asked (T216.46):
Q. In addition to the other monies that you got from your wife, you knew that your wife did not have from her own sources this amount of money to give you; didn't you?
A. INTERPRETER: I didn't know in the beginning.
Q. You found out at some stage that this wasn't your wife's money; didn't you?
A. INTERPRETER: Yes she told me later that some of the money was from her brother.
Q. When did she tell you that?
A. INTERPRETER: I can't remember; maybe in 2005 or 2006.
37 None of the relevant advances to [the respondent] were made in 2005 or 2006; the latest transfer of funds to him the subject of the claim, was on 1 April 2004, being item 43 in the Second Schedule in the Amended Statement of Claim. None of the transactions described in Exhibit PX08 were in 2005 or 2006. In those circumstances, I must conclude that [the respondent] has changed his position on the faith of the payments to him, and that a restitutionary remedy for moneys had and received is not available against him."
8 In dealing with the appellant's tracing claim against the respondent (which is not in issue on the appeal), the judge had said:
"31 For the purposes of establishing an equitable proprietary remedy, a plaintiff must also establish that assets still exist to which that remedy can attach. The plaintiff has failed to do so. To the contrary, the evidence suggests that the funds no longer exist in [the respondent's] hands. It is true that [the respondent] gave evidence that he had returned the funds, to the extent that they were not lost, to [the first defendant], who had placed them in a cardboard box in her factory; but even if this uncorroborated and improbable story were true, it would not establish that there were traceable funds in [the respondent's] hands. Accordingly, an equitable proprietary tracing remedy is not available."