"How many times do I have to say leave me alone?"
"The first thing to be observed is that it is implicit in the section [section 36] that this court may only increase sentences which it concludes were unduly lenient. It cannot … have been the intention of Parliament to subject defendants to the risk of having their sentences increased – with all the anxiety that this naturally gives rise to – merely because in the opinion of this court the sentence was less than this court would have imposed. A sentence is unduly lenient, we would hold, where it falls outside the range of sentences which the judge, applying his mind to all the relevant factors, could reasonably consider appropriate … it must always be remembered that sentencing is an art rather than a science; that the trial judge is particularly well paced to assess the weight to be given to various competing considerations; and that leniency is not in itself a vice. That mercy should season justice is a proposition as soundly based in law as it is in literature."
"… there is a line to be drawn … between the leniency of a sentence in any given case and a sentence which is 'unduly' lenient, in the words of the statute. … The purpose of the system of Attorney-General's References in particular cases seems to us to be the avoidance of gross error, the allaying of widespread concern at what may appear to be an unduly lenient sentence, and the preservation of public confidence in cases where a judge appears to have departed to a substantial extent from the norms of sentencing generally applied by the courts in cases of a particular type."