8 It is convenient to deal with the first two grounds together, relating to the claim by the appellant as an assignee in equity. It was common ground before the magistrate, and before me, that since no notice had been given to the respondent of the assignment to the appellant of the debt owed by the respondent to Mardy's pursuant to s.134 of the Property Law Act, the assignment was an equitable assignment, and not a legal assignment. Mr Jones' principal submission was that the magistrate had incorrectly held that, unless an equitable assignee has first given notice of the assignment to the debtor, the equitable assignee is unable to sue the debtor in its own name to recover the debt. Mr Jones submitted that the magistrate's ruling to that effect was an error of law. He submitted that an equitable assignee may sue for an assigned debt in its own name. He further submitted that the requirement that, in such an action, the assignor be joined as a party, is not a requirement which is fundamental to the maintenance of the cause of action by the assignee, but rather is a requirement of practice. Thus he submitted that, if the magistrate had considered that the assignor should have been added as a party to the proceeding, he should not have dismissed the action, but, rather, should have either given the appellant the opportunity to join the assignor as a party, or, alternatively, stayed the proceeding unless and until the assignee was joined as a party to it. Mr Jones submitted that the magistrate was bound to follow the decision of the Queensland Court of Appeal in Thomas' case, unless it was plainly wrong. He submitted that the decision of the Court of Appeal was not plainly wrong, but is good law.
9 In response Mr Matters, who appeared for the respondent, submitted that the magistrate's decision was not that an assignee in equity may not institute proceedings in its own name to recover an assigned debt; rather, the magistrate's decision was that the assignee must join the assignor as a party to such proceeding in order to be entitled to succeed in a claim for the assigned debt. He submitted that the Court of Appeal in Thomas's case was plainly in error in holding that the requirement that the assignor be joined as a party to the proceeding is a requirement of practice or procedure only. Rather, Mr Matters submitted that such a joinder is a necessary component of a claim asserted by an equitable assignee against a debtor. Thus he submitted that the magistrate was not in error in declining to follow the decision of the Court of Appeal in Thomas' case and in reaching the conclusion that, without the joinder of the assignor, the assignee could not sue the debtor on the assigned debt.
10 The foregoing submissions raise three issues. The first issue concerns the proper characterisation of the reasons for decision by the magistrate. The second issue is whether those reasons contain an error of law. The third issue is whether, in the case of an equitable assignment, the requirement that the assignor be joined as a party to the proceeding, is a matter of procedure only, or whether it is fundamental to the validity of the claim by the assignee.
11 In respect of the first issue, in my view Mr Jones is correct in maintaining that the magistrate considered that, in order that the appellant, as the assignee in equity of the debt owed by the respondent, be entitled to maintain an action against the respondent for that debt, the appellant must have first given notice to the respondent.
12 The magistrate commenced the part of his reasons, which is relevant to this issue, by referring to s.134 of the Property Law Act. He observed that a failure to comply with the requirements of s.134 of the Property Law Act would not prevent the creation of an equitable assignment of the debt. He acknowledged that therefore the assignee may enforce his equitable rights against the assignor, and any "priorities thus created in respect of the assigned property". His Honour then referred to the plaintiff's submission that the appellant had the right to sue in its own name in respect of the debt. He observed that in support of that proposition the appellant relied on the decision of the Court of Appeal in Thomas' case. His Honour then referred to the decision of the New Zealand Court of Appeal in Mountain Road (No. 9) Limited v Michael Edgley Corp Pty Ltd,[5] the decision of Giles J in Showa Shoji Australia Pty Ltd v Oceanic Life Limited[6] and the decision of the House of Lords in Brandt's (William) Sons and Co v Dunlop Rubber Company Limited.[7] His Honour expressed the view that the decision of Giles J in Showa Shoji Australia was "entirely against" the proposition that an equitable assignee can sue in his own name on a legal chose in action without prior notice to the debtor. Having considered those authorities, and a number of other authorities to which he referred, his Honour reached the conclusion which I have quoted above.[8] Thus he concluded that Thomas was contrary to the weight of persuasive authority to the effect that an assignee in equity of a legal chose in action cannot sue in its own name at law to recover from the debtor without prior notice having been given to the debtor. Accordingly the learned magistrate held that the plaintiff could not maintain its action in debt as assignee against the respondent.
13 I am further of the view that, in reaching that conclusion, the learned magistrate was wrong in law. Indeed so much was conceded by Mr Matters, and correctly so. It is clear on all the authorities that it is not necessary for an equitable assignee to give notice to the debtor or obligor in order to perfect the interest of the assignee in equity. Further, the assignee in equity is entitled to commence proceedings in its own name against the debtor or obligor, regardless of whether the assignee (or indeed the assignor) has given prior notice of the assignment to the debtor. The giving of such notice is irrelevant to the right of the assignee in equity to commence such proceedings. However the authorities also make it clear that ordinarily, and indeed save for exceptional cases, the assignee in equity must join the assignor as a party to the proceeding, and, if necessary, as a defendant to it. The authorities, particularly in the last century, have characterised that requirement as one of practice, and not as a requirement which goes to the substance of the cause of action of the assignee in equity against the obligor. As a matter of practice, the Court ordinarily insists that the assignor in equity be joined as a party to the proceeding. However, if the assignor has not been so joined, that is not fatal to the validity of the cause of action asserted by the assignee against the obligor. In such circumstances, the Court should, ordinarily, give the assignee the opportunity to join the assignor in the suit, if necessary by staying the proceeding unless and until the assignor is joined as a party to it.
14 The principles which I have just enunciated may be derived from a number of authorities, to which Mr Jones referred me in his very thorough submissions. Before turning to those authorities it is worthwhile briefly considering the historical context from which the relevant principles derive. It is of course trite law that at common law, with some limited exceptions, it was not possible to effectively assign a contractual right inter vivos. On the other hand equity did recognise such an assignment. Such an equitable assignment could not transfer the right of action at law. However it conferred on the assignee the right to invoke the aid of equity in asserting the common law right. Thus, if necessary, equity would compel a defendant to permit an action at law to be brought in his or her name, or might, in an appropriate case, make an order for specific performance requiring the assignor to lend his name to the assignee so that the latter might bring an action at law. However, as a review of the authorities reveals, the requirement, that the assignor be a party to any action based on the assigned right, has become considered as a requirement of practice, rather than as an essential ingredient of the equitable assignee's cause of action. Generally, as the authorities point out, the purpose of the requirement is to bind the assignor to the judgment between the assignee and the debtor, so that the assignor might not later dispute the assignment, or the right of the assignee to receive direct payment of the assigned debt from the obligor.
15 In considering the authorities, a useful starting point is the decision of the Queensland Court of Appeal in Thomas v National Australia Bank Limited. The present appellant principally relied on that authority before the magistrate in support of the proposition that it was entitled to maintain its claim against the respondent in its own right. In Thomas' case the appellant had a cause of action against the respondents. He was declared bankrupt in October 1991, whereupon his rights of action passed to his trustee in bankruptcy. The bankruptcy terminated in 1994. In January 1996 the trustee assigned the right of action to the appellant, who then commenced proceedings against the respondents. The appellant did not join the trustee in bankruptcy as a party to the proceeding. Nor had he given prior notice of the assignment to the respondent. A preliminary question was tried as to whether the appellant was entitled to bring and maintain the action notwithstanding that no notice of the assignment had been given to the respondent. The primary judge held that since no such notice had been given, the appellant had no right to bring and maintain the action. Accordingly, the primary judge dismissed the action. That decision was reversed by the Queensland Court of Appeal.
16 On appeal, the respondents supported the primary judge's reasons, but also contended that the order dismissing the action could be upheld on the basis that the trustee in bankruptcy, being the assignor of the chose in action, was a necessary party to the appellant suit. It was submitted that since the trustee had not been joined, the suit was a nullity. That question was of some significance, since, if the action was a nullity, the period of limitation had passed, and the plaintiff would not be able to commence fresh proceedings against the respondent.
17 Thus the first issue in Thomas which the Court of Appeal was called upon to address, was the question whether an assignee in equity must first give notice to the obligor of the assignment, before commencing action against him. The leading judgment was delivered by Pincus JA. His Honour considered a number of authorities to which I shall later refer, including the decision of the New Zealand Court of Appeal in Mountain Road (No. 9) Limited v Michael Edgley Corporation Pty Ltd.[9] Pincus JA observed that although there was authority tending "both ways" on the issue, the weight of Australian authority was against the view adopted in the Mountain Road case, and supported the proposition that the assignee's title is complete without notice of the assignment to the obligor, so as to enable suit to be brought against the obligor before notice is given to him.[10] On the second issue, Pincus JA also considered a number of authorities, to some of which I shall later refer. They included William Brandt's Sons and Co v Dunlop Rubber Company Limited,[11] Performing Right Society Limited v London Theatre of Varieties Limited,[12] and National Mutual Life Nominees Limited v National Capital Development Commissioner.[13] Based on those authorities his Honour concluded that the absence of the assignee as a party to the proceeding did not render the proceeding a nullity. His Honour considered that the requirement that the assignor be a party to the proceeding was one of practice. In the circumstances of that case, Pincus JA considered that there was no practical advantage in joining the trustee in bankruptcy as a party to it. On that basis he held that the action was correctly constituted without joining the assignor (the trustee in bankruptcy).[14]
18 Both McMurdo P[15] and Thomas JA[16] expressed agreement with the reasons of Pincus JA. Further, McMurdo P held that, in any event, notice of the assignment had been given to the respondents, at the time at which the respondents were served with the statement of claim in which the assignment was pleaded. In his concurring judgment, Thomas JA held, inter alia, that notice of the assignment was given to the respondent by service of the statement of claim which stated the fact of the assignment. However, I do not infer from his Honour's reasons that his Honour considered that such a notice was necessary to perfect the right of the assignee to sue in equity. Rather it would seem that his Honour considered that the giving of such notice, in the pleading, constituted sufficient notice for the Queensland statutory equivalent of s.134 of the Property Law Act.[17]
19 Pausing there, Thomas v National Australia Bank Limited is thus clear authority for the two propositions relied on by the present appellant. First, it is authority for the proposition that it is not necessary for the assignee in equity to give notice of the assignment to the obligor, before commencing suit against the obligor. Secondly, the Court of Appeal held that the requirement that the assignor be joined as a party to the proceeding is a procedural requirement, and not a substantive requirement, which, in appropriate cases, a court may waive.
20 The decision of the Queensland Court of Appeal in Thomas' case, although not binding on this Court, is of persuasive authority. Courts of first instance, including this Court, as a matter of precedent, follow a decision of an intermediate appellate court of another State, unless that decision can be demonstrated to be manifestly wrong.[18] As I have already stated, Mr Matters has accepted that the decision of the Court of Appeal in Thomas is correct in respect of the first issue decided by it, namely, that an assignee in equity may institute proceedings, in his own name, without first giving notice to the obligor. Mr Matters submitted, however, that as a matter of principle, the decision of the Queensland Court of Appeal was plainly wrong on the second issue determined by it, namely, that the requirement that the assignor be joined as a party was a requirement of practice or procedure. In my view, the authorities relied upon by Mr Jones, and to which I shall refer, provide strong support for the decision of the Queensland Court of Appeal, and for the proposition that the requirement that the assignor be joined as an action is now considered to be a requirement of practice or procedure only.
21 It is appropriate that I first consider the basis upon which the learned magistrate declined to follow the first principle established in Thomas' case, namely that it is not necessary that an assignee in equity give notice of the assignment to the obligor, before the assignee commences an action against the obligor. Mr Matters conceded that if the magistrate did base his decision on the proposition that the giving of such notice is necessary, then his Honour was in error in doing so. That concession by Mr Matters is plainly correct.
22 There is a strong body of authority for the proposition that it is not necessary that an assignee in equity is required to give notice of the assignment to the obligor, in order that his interest as assignee be complete, not only as against the assignor, but also against the assignee. Of course, the giving of such notice is important in a number of different contexts. For example, it may affect competing priorities of other assignees of the debt.[19] Further, the provision of notice by the assignee to the obligor is important to ensure that the debt is paid to the assignee.[20] In the absence of appropriate notice an assignee may be bound by payments made by the obligor in ignorance of the assignment.[21]
23 A number of relevant authorities, relating to the proposition that notice is not required to effect an equitable assignment, were discussed in the judgment of Pincus JA in Thomas' case. The proposition is not in issue before me, but in deference to the learned magistrate, I should briefly refer to some of those authorities.
24 In Ward and anor v Duncombe and ors,[22] the House of Lords was concerned with an issue of competing priorities between assignees of a fund which was vested in trustees. Lord Macnaughten referred to the rule in Dearle v Hall,[23] and observed:[24]