"T shall not repeat the references I made in Lovell v Lovell (1950) 81 CLR 513
at 532 to 534 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 (1936) 55 CLR 499 at 504, 505. So, too,
in my opinion, the exercise of the discretion to review a taxation of costs is
subject to no narrower principle than that which was stated by Bovill CJ and Brett
J in Hill v Peel (1870) LR 5 CP 172: '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 show that the officer is
wrong in the judgment which he has formed'."