"Where multiple offences or a single conspiracy to commit multiple offences of particular severity have taken place sentences of in excess of 20 years may be appropriate."
"A sentence is unduly lenient, we would hold, where it falls outside the range of sentences which the judge, applying his mind to all relevant factors, could reasonably consider appropriate. In that connection, regard of course must be had to reported cases and in particular to the guidance given by this court from time to time in so-called guideline cases. However, it must always be remembered that sentencing is an art rather than a science. The trial judge is particularly well placed to assess the weight to be given to various competing considerations, and that leniency is not of itself a vice."
"The format which is adopted by the Sentencing Council in producing its guidelines is to present the broad categories of offence, frequently encountered pictorially in boxes. That is perhaps convenient, especially since it is necessary to condense the presentation as much as possible and to avoid discursive narrative on so wide a range of offending. It may be that the pictorial boxes which are part of the presentation may lead a superficial reader to think that adjacent boxes are mutually exclusive, one of the other. They are not. There is an inevitable overlap between the scenarios which are described in adjacent boxes. In real life, offending is found on a sliding scale of gravity with few hard lines. The guidelines set out to describe such sliding scales and gradations."