[Rev. 2012] Prisons CAP. 90 statement of the amount of remission earned by the prisoner under section 46 of this Act immediately before the making of the order, and such certificate shall be conclusive evidence of its contents. (4) When any compulsory supervision order made under this section has been revoked the prisoner in respect of whom such order had been made shall, after undergoing any other punishment to which he has been sentenced, if any, undergo a term of imprisonment equal to a period of three months, or to the period of remission he had earned under section 46 of this Act, immediately before the making of the compulsory supervision order, whichever is the greater. (5) Where a compulsory supervision order has been revoked by the Minister, a magistrate shall, on production to him of a certificate of such revocation signed by the Commissioner, issue a warrant for the arrest of the person in respect of whom the compulsory supervision order had been made; and such person on being arrested shall be brought before that magistrate or any other magistrate having jurisdiction who, on being satisfied after proper inquiry that the person has been convicted of an offence or has contravened or failed to comply with any of the terms and conditions of his order, shall commit him to prison for the term provided in subsection (4) of this section. (6) Notwithstanding the provisions of subsection (1) of this section, the Commissioner may at any time discharge a prisoner undergoing a term of imprisonment under subsection (4) of this section, and at the same time make a further compulsory supervision order in respect of such prisoner. (7) The Commissioner may vary a compulsory supervision order, and if he considers that a person subject to a compulsory supervision order should be freed from all liability under this Act he may cancel the order, and the person shall thereupon be free from all such liability. [Act No. 8 of 1968, Sch., Act No. 10 of 1981, Sch.] 48. Board of Review (1) The President shall appoint a Board of Review, which shall at prescribed intervals, or at such lesser intervals as circumstances may require, review the sentences of all prisoners serving sentences of or exceeding seven years, including prisoners sentenced to imprisonment for life or to be detained during the President’s pleasure, and in each case shall tender advice to the President on the exercise of the prerogative of mercy. (2) The Commissioner shall submit each month to the Board of Review a report on the general condition and conduct of every prisoner referred to in subsection (1) of this section who has during the previous month completed such period of his sentence as may be prescribed. [Act No. 21 of 1966, Second Sch., L.N. 124/1964.] 49. Release on parole (1) Within three months of the date upon which a prisoner serving a sentence of or exceeding four years is due for release, the Commissioner may allow such prisoner to be absent from prison on parole for such length of time and upon such conditions as the Commissioner may specify. (2) The Commissioner or an officer in charge may at any time recall a prisoner released on parole. P30 - 22 [Issue 1]