"(1). If recommended to do so by the [Parole] Board in the case of a short-term or long-term prisoner who has been released on licence under this Part, the Secretary of State may revoke his licence and recall him to prison. (2) The Secretary of State may revoke the licence of any such person and recall him to prison without recommendation by [Parole] Board, where it appears to him that it is expedient in the public interest to recall that person before such a recommendation is practicable"
"The Parole Board shall take into account the fact that the prisoners who have been sentenced under the provisions of the [1991 Act] cannot be disadvantaged by the recall provisions of the [2003 Act]"