By Jacqueline Beard

Sentences of Imprisonment for Public Protection (IPP sentences) were available for courts to impose from 2005 to 2012. They were designed to detain offenders who posed a significant risk of causing serious harm to the public through further serious offences in prison until they no longer posed such a risk. IPP sentences are indeterminate as opposed to fixed-term sentences. They have a minimum term that must be served in custody, sometimes called a ‘tariff’ that must be served before a prisoner can be considered for release by the Parole Board. The prisoner can then only be released once the Parole Board is satisfied the prisoner no longer needs to be confined for the safety of the public. Release is never automatic, and prisoners can be detained indefinitely if the Parole Board decides it is not safe to release them. When released, a person serving an IPP sentence will be on licence, subject to conditions. Breaching the conditions of the licence may result in the person being recalled to prison. If recalled, a person must remain in prison until the Parole Board is satisfied that custody is no longer necessary for public protection. The licence will be in force indefinitely until its termination. People serving an IPP sentence are eligible to have termination of their licence considered by the Parole Board ten years after their first release.

London: House of Commons Library, 2023. 22p.