In simple terms, the issues raised in the second proceedings were not litigated in the first. The relief claimed in each was different and depended on the resolution of essentially different factual issues arising out of different alleged acts and omissions on the part of Westgarths, so that it cannot be said that in substance Macquarie was endeavouring again to litigate the same cause of action."
50 The appellant relied in particular on the words of Dixon CJ and McTiernan, Williams, Webb and Kitto JJ in Williams v Milotin (1957) 97 CLR 465 at 474, that "when you speak of a cause of action you mean the essential ingredients in the title to the right which it is proposed to enforce". He pointed out that their Honours' words were cited by Gummow J (in dissent in the result) in Stingel v Clark (2006) 80 ALJR 1339 at [46], there used by his Honour to support continued distinction between a cause of action in negligence for personal injury and a cause of action in trespass to the person. As I understand the appellant's submissions, the right in the present case was the right to indemnity under the policy, and the ingredients to the title to that right in Mr Greaves' proceedings were the same as the ingredients in the respondent's proceedings because Mr Greaves sought to make out the right.
51 The equation of the ingredients because of the one right is flawed, but more fundamentally reference to the title to the right has its own problem of the level of particularity at which the right is identified. Is it a right to have the appellant pay money, without going further? Are there rights to have the appellant pay the amounts of the Defence Costs (one right) and to have the appellant pay the amount of the Compensation Order (another right)? Defence Costs could be subdivided into costs of defending a Claim and costs incurred in relation to an investigation or other official proceedings. The definition of Loss is strangely worded, but could suggest other rights, and rights could (and for reasons later given do) turn on what the appellant is called upon to pay - it can be said that there are as many rights as there are occasions on which it must pay money. Reliance on the words used in Williams v Milotin does not provide a simple answer. The "ingredients in the title to the right" are what mark out the right, and if the form of words is adopted there must be ascertained what facts are relied on for the right.
52 The forms of words used to describe what is meant by a cause of action may guide, but do not dictate the answer in a given case. There must be regard to the facts relied upon to establish the right to relief. If the claim is founded in contract, the facts include the terms of the contract invoked for the claim, what the defendant promised to do, and what it did or failed to do. There may be different breaches of the one contract arising out of the same facts (Republic of India v India Steamship Co), there may be one breach of the contract despite partly different facts (Conquer v Boot (1928) 2 KB 336; Onerati v Phillips Constructions Pty Ltd (in liquidation)), or there may be different breaches of the contract arising out of different facts.
53 All this presupposes a cause of action; it just has to be identified. Under s 75 of the Supreme Court Act, replicating the inherent power of a superior court (Ainsworth v Criminal Justice Commission (1992) 175 CLR 564 at 581), proceedings may be brought for declaratory relief, and the Court "may make binding declarations of right whether any consequential relief is or could be claimed or not". As long ago as 1915 it was said by Pickford LJ of the power under a rule in similar terms, in Guaranty Trust Co of New York v Hannay & Co (1915) 2 KB 356 at 562 -
"I think therefore that the effect of the rule is to give a general power to make a declaration whether there be a cause of action or not, and at the instance of any party who is interested in the subject-matter of the declaration."
54 This had been preceded in, for example, Dyson v Attorney-General (1912) 1 Ch 158 and Burghes v Attorney-General (1911) 2 Ch 139, in which declarations were sought to the effect that the plaintiff was under no obligation to the defendant: there was no cause of action as ordinarily understood. In Gouriet v Union of Post Office Workers (1978) AC 435 Diplock LJ said at 501 -
"The early controversies as to whether a party applying for declaratory relief must have a subsisting cause of action or a right to some other relief as well can now be forgotten. It is clearly established that he need not. Relief in the form of a declaration of right is generally superfluous for a plaintiff who has a subsisting cause of action. It is when an infringement of the plaintiff's rights in the future is threatened or when unaccompanied by threats, there is a dispute between the parties as to what their respective rights will be if something happens in the future, that the jurisdiction to make declarations of right can be most usefully invoked. But the jurisdiction of the court is not to declare the law generally or to give advisory opinions; it is confined to declaring contested legal rights, subsisting or future, of the parties represented in the litigation before it and not those of anyone else."
55 The width of the power to grant declaratory relief has been accepted in Australia; for example, in Sankey v Whitlam (1978) 142 CLR 1 Gibbs CJ said at 23 that it extended to a plaintiff having it declared that he is under no duty or liability to the defendant.
56 Borchard, Declaratory Judgments, 2nd ed (1941) says at 48-9 -
"The fact that under declaratory procedure so many types of legal issues are presentable for determination which are incapable of any other form of relief, has imposed upon the courts at the outset the function of determining whether the facts justify the grant of judicial relief, and more particularly, whether the plaintiff has a 'legal interest' in the relief he seeks. In the more familiar executory action, the legal interest is sought in the 'cause of action', but, as already observed, the narrow scope often given to this ambiguous term has served to conceal from view the many occasions and situations in which a plaintiff not yet physically injured or one seeking escape from dilemma and uncertainty by a clarification of his legal position has need for judicial relief not of the traditional kind. The wider opportunity and necessity for judicial usefulness disclosed by the declaratory judgment make necessary either a more flexible and comprehensive connotation of the term 'cause of action' or the employment of a less chameleonic term to indicate when the petitioner may be accorded judicial protection. Without losing sight of the necessity for jurisdictional facts, it is suggested that the term 'legal interest' meets the need."
57 Rule 12.4 still uses the "chameleonic term". (The current equivalent in England, rule 38.7 of the Civil Procedure Rules 1998, has changed to "arises out of facts which are the same or substantially the same".) It is used in many places in the rules, apart from in the unwritten law such as in connection with res judicata. It is difficult to give it a special meaning in r 12.4. The appellant's submissions at one point included, as an application of the words "the essential ingredients to the title to the right which it is proposed to enforce", that Mr Greaves' proceedings involved a "right to a declaration", as I understand it with the suggestion that the essential ingredients of the right were the same as the ingredients in the respondent's proceedings. Implicitly, it was said that the right to a declaration, or at least the claim to a declaration, was a cause of action for the purposes of r 12.4. I do not think this should be accepted. Declaratory relief may be claimed by way of establishing and enforcing a cause of action, but the claim to declaratory relief is not the cause of action; nor does a claim to declaratory relief become a cause of action if one does not otherwise exist.