"Nor is there any serious dispute between
the parties that appellate courts exercise
particular caution in reviewing decisions
pertaining to practice and procedure.
Counsel for Brown urged that specific
cumulative bars operate to guide appellate
courts in the discharge of that task. Not
only must there be error of principle, but
the decision appealed from must work a
substantial injustice to one of the
parties. The opposing view is that such
criteria are to be expressed
disjunctively. Cases can be cited in
support of both views ... For
ourselves, we believe it to be unnecessary
and indeed unwise to lay down rigid and
exhaustive criteria. The circumstances of
different cases are infinitely various.
We would merely repeat, with approval, the
oft-cited statement of Sir Frederick
Jordan in In re the Will of F.B. Gilbert
(dec.) [1946] NSWStRp 24; (1946) 46 SR (NSW) 318 at p 323:
'...I am of opinion that,...
there is a material difference
between an exercise of
discretion on a point of
practice or procedure and an
exercise of discretion which
determines substantive rights.
In the former class of case, if
a tight rein were not kept upon
interference with the orders of
Judges of first instance, the
result would be disastrous to
the proper administration of
justice. The disposal of cases
could be delayed interminably,
and costs heaped up
indefinitely, if a litigant with
a long purse or a litigious
disposition could, at will, in
effect transfer all exercises of
discretion in interlocutory
applications from a Judge in
Chambers to a Court of Appeal.'
... It is safe to say that the question of
injustice flowing from the order appealed
from will generally be a relevant and
necessary consideration."