"Argument was addressed to me on the general topic of the attitude which ought to be adopted, on an application such as the present, to decisions of the taxing officer on questions of quantum. No doubt there are to be found, in some of the cases on the subject, statements to the effect that the discretion of a taxing officer will not be interfered with by a judge unless the taxing officer has erred on a question of principle, and not at all on a mere question of quantum; see, for example, Alsop v Lord Oxford; Re Catlin; In the Estate of Ogilvie; Coon v Diamond Tread Co. So, too, there are to be found in many of the cases decided upon the wider question as to the proper attitude of a court of appeal to any judgment given in exercise of a discretion, statements appearing to limit the function of the appellate court to correcting errors of principle. Yet in that wider area it is clear that such statements are not exhaustive. I shall not repeat the references I made in Lovell v Lovell to cases of the highest authority which appear to me to establish that the true principle limiting the manner in which appellate jurisdiction is exercised in respect of decisions involving discretionary judgment is that there is a strong presumption in favour of the correctness of the decision appealed from, and that that decision should therefore be affirmed unless the court of appeal is satisfied that it is clearly wrong. A degree of satisfaction sufficient to overcome the strength of the presumption may exist where there has been an error which consists in acting upon a wrong principle, or giving weight to extraneous or irrelevant matters, or failing to give weight or sufficient weight to relevant considerations, or making a mistake as to the facts. Again, the nature of the error may not be discoverable, but even so it is sufficient that the result is so unreasonable or plainly unjust that the appellate court may infer that there has been a failure properly to exercise the discretion which the law reposes in the court of first instance: House v The King. So, too, in my opinion, the exercise of the jurisdiction to review a taxation of costs is subject to no narrower limitation than that which was stated by Bovill CJ and Brett J in Hill v Peel: - 'A very wide discretion must necessarily be left to the taxing officer, which must be exercised by him after a careful consideration of the particular circumstances of each case; and where, after properly considering the matter, the master has arrived at a decision, it lies upon those who impeach his decision to satisfy the Court that he is wrong. Where a principle is involved, the Court will always entertain the question, and, if necessary, give directions to the master; but, where it is a question of whether the master has exercised his discretion properly, or it is only a question as to the amount to be allowed, the Court is generally unwilling to interfere with the judgment of its officer, whose peculiar province it is to investigate and to judge of such matters, unless there are very strong grounds to shew that the officer is wrong in the judgment which he has formed'.
I take it to be true that the decision of the taxing officer as to quantum is generally speaking final, and that it must be a very exceptional case in which the Court will even listen to an application to review such a decision: In the Estate of Ogilvie. But the authorities as a whole (not omitting to notice White v Altrincham UDC, do not establish as an absolute proposition that a judge will never review a taxing officer's decision on a question of quantum only. Swinfen Eady LJ said in Slingsby v Attorney-General, after quoting the passage from Ogilvie's Case to which I have referred: 'The decision of the taxing master is not absolutely final, even on a question of quantum'; and so it has been held several times in Victoria, where the view has been accepted for many years that a taxing officer's decision on quantum will be corrected if the judge concludes that 'he has clearly made a mistake': In Re Melbourne Parking Station Ltd; House v Life Insurance Co of Australia Ltd; Dwyer v National Trustees Executors & Agency Co of Australasia Ltd (No 3); Carrazzo v Weyman; McCoughtry v Schrick; see also, Russo v Russo. I respectfully adopt the summary of the law on this matter which was made by Jordan CJ, with the concurrence of Harvey CJ in Eq and Street J, in Schweppes' Ltd v Archer. His Honour said: - 'In appeals as to costs, the principles to be applied are these. The Court will always review a decision of a Taxing Officer where it is contended that he has proceeded upon a wrong principle, for the purpose of determining the principle which should be applied; and an error in principle may occur both in determining whether an item should be allowed and in determining how much should be allowed. Where no principle is involved, and the question is, whether the Taxing Officer has correctly exercised a discretion which he possesses and is purporting to exercise, the Court is reluctant to interfere. It has undoubted jurisdiction to review the Taxing Officer's decision even where an exercise of discretion only is involved, and will do so freely on a proper case, using its own knowledge of the circumstances: Western Australian Bank v Royal Insurance Co; Clark, Tait & Co v Federal Commissioner of Taxation, but it will in general interfere only where the discretion appears not to have been exercised at all, or to have been exercised in a manner which is manifestly wrong; and where the question is one of amount only, will do so only in an extreme case'."[8]