“(1) In dealing with an application under paragraph 3, the High Court must have regard to – (a) the seriousness of the offence, or of the combination of the offence and one or more offences associated with it, (b) where the court is satisfied that, if the prisoner had been sentenced to a term of imprisonment, the length of his sentence would have been treated bysection 67 of the Criminal Justice Act 1967 (c.80) as being reduced by a particular period, the effect which that section would have had if he had been sentenced to a term of imprisonment, and (c) the length of the notified minimum term or, where a notification falling within paragraph 2(b) has been given to the prisoner, to the fact that such notification has been given. (2) In considering under sub-paragraph (1) the seriousness of the offence, or of the combination of the offence and one or more offences associated with it, the High Court must have regard to – (a) The general principles set out in Schedule 21, and (b) Any recommendation made to the Secretary of State by the trial judge or the Lord Chief Justice as to the minimum term to be served by the offender before release on licence. (3) In this paragraph “the notified minimum term” has the same meaning as in paragraph 3.” (a) the seriousness of the offence, or of the combination of the offence and one or more offences associated with it, (b) where the court is satisfied that, if the prisoner had been sentenced to a term of imprisonment, the length of his sentence would have been treated bysection 67 of the Criminal Justice Act 1967 (c.80) as being reduced by a particular period, the effect which that section would have had if he had been sentenced to a term of imprisonment, and (c) the length of the notified minimum term or, where a notification falling within paragraph 2(b) has been given to the prisoner, to the fact that such notification has been given. (2) In considering under sub-paragraph (1) the seriousness of the offence, or of the combination of the offence and one or more offences associated with it, the High Court must have regard to – (a) The general principles set out in Schedule 21, and (b) Any recommendation made to the Secretary of State by the trial judge or the Lord Chief Justice as to the minimum term to be served by the offender before release on licence. (3) In this paragraph “the notified minimum term” has the same meaning as in paragraph 3.”
“…if the reduction is to operate effectively, save perhaps in the unusual case where the new tariff may be lower than the original minimum term, it must surely do so against the fixed minimum term, not against the newly assessed, albeit notional tariff…if exceptional progress is set against the new notional tariff rather than the original term, in practice the eventual result would at least in part be based on a starting point higher than the original minimum term, which if not expressly prohibited in this particular context, would be inconsistent with the express prohibition against an increased tariff… in our judgment if exceptional progress is properly to be taken into account…it should be productive of real benefit for the prisoner.”