It is axiomatic that when a discretion is
given to a court oar a judge the discretion
must be exercised judicially, that is to say
according to proper principles: indeed one
of the comparatively few grounds upon which
a Giscretionary decision can be successfully
challenged on appeal is that there was in it
some error of principle. When a new
discretion is created by statute one looks
primarily to the statute itself for
guidance, either express or implied, as to
the principles upon which the discretion is
to be exercised, that is to say what factors
should be taken into account, or, on the
other hand, put aside as irrelevant when
reaching a decision. Some of the
difficulties arising under this Act are
illustrated in the judgment of Moffitt J in
Acquilina v Dairy Farmers Co-Operative Miik
Co. Ltd. (No. 2), £19653 NSWR 772, where his
Honour considered in detail the
corresponding legislation of New South
Wales. The intention of the Act is clearly
enough to relieve a litigant from the burden
of the costs of an appeal in a case where he
has obtained a favourable decision but has
lost it on appeal because the court below
erred on a question of law; the purpose of
the Act is not, however, to promote
litigation, nor to provide legal aid in a
broad sense out of the Fund: see per