"The more serious question is whether a court can be said to be other
than
independent because a provision of the law imposes a mandatory sentence.
Obviously the provision of the mandatory sentence excludes
all discretion in
the court. This, it may be noted, was the position for hundreds of years under
the law of England in the days of
capital punishment, when for murder the only
sentence which might be pronounced was a sentence of death. For our part we
find it
difficult to believe that the courts were any less independent on this
account. Statutes in many countries make provision not only
for mandatory
sentences but for maximum and for minimum sentences. It may be said that the
latter two categories leave the court
some discretion but it cannot be denied
that they restrict it. The fact, however, is that it is of the nature of the
legislative
process constantly to vary the content of the law to be applied by
the courts. This means that with every exercise of the legislative
power there
comes into existence a new legal framework to which the court must give
effect. Thus a court which is free to act on
the principles of common law and
equity may find that a new defence or a new cause of action is introduced by a
statute. It cannot,
in our judgment, seriously be described as trenching upon
the independence of the court to say that it is required to give effect
to the
alteration in the law. The courts exist to enforce the law in the form which
it takes from time to time. They are, in our
judgment, independent within the
meaning of s10(1) if in the exercise of that function they are subject neither
to control nor pressure
by any outside body. The requirement of s10(1) is, in
our opinion, fully met if, as in the case in Solomon Islands, they are subject
to no direction by the legislature or the executive government as to the
disposition of a particular case and of no form of pressure
from outside
bodies in the performance of their judicial functions. They are, however, like
the courts in all civilised countries
subject to the same body of law as is
every other citizen. The courts are not intended by s10(1) to be independent
of the law but
independent within it."
In Kable v Director of Public Prosecutions (NSW) [1996] HCA 24; (1996) 70 ALJR 814, the
High Court of Australia was divided as to whether or not an Act which required
the Supreme Court of New South Wales to impose
preventative detention on a
single individual was an invalid interference with the judicial power. Dawson
J held, at 831, that "it
is not apparent that an order that the appellant be
detained represents the exercise of executive or legislative power rather than
of judicial power". Toohey J said, at 837, that: