Commentary on Sections Part 12 - Sentencing Chapter 6: Release of Prisoners on Licence Section 267: Alteration by order of relevant proportion of sentence
606.This section gives the Secretary of State the power to amend by order the proportion of a custodial sentence of 12 months or more which must be served in prison before the release. It also enables the Secretary of State to amend by order the proportion of an extended sentence for certain sexual and violent offences (see sections 227 and 228) which must be served before a prisoner is eligible for release on the recommendation of the Parole Board.