Section 86 of the Principal Act is repealed and the following section is substituted:

86.     Remissions

(1)  In this section –

commencement day means the day on which this section, as inserted by the Corrections Amendment (Prisoner Remission) Act 2019 , commences.

(2)  Subject to this section, the Director may, in accordance with regulations made in relation to the matters referred to in section 90(2)(d), grant to a prisoner who is in custody a remission of the whole, or any part, of one or more sentences of imprisonment under which the prisoner is serving all or part of a continuous period in custody.

(3)  Remission may only be granted in relation to a sentence of imprisonment in respect of a prisoner –

(a) if the sentence was imposed on the prisoner before the commencement day; or

(b) where the prisoner is in custody under more than one sentence of imprisonment – if at least one of those sentences of imprisonment was imposed on the prisoner before the commencement day; or

(c) where the prisoner is in custody for a continuous period under different sentences of imprisonment for different parts of the continuous period – if at least one of those sentences of imprisonment was imposed on the prisoner before the commencement day.

(4)  The Director may not grant remission to a prisoner who is in custody for a period of imprisonment –

(a) under a sentence of imprisonment imposed after 1 January 1994; or

(b) that is imposed, in whole or in part, by one or more sentences of imprisonment, at least one of which was imposed after 1 January 1994 –

if the remission would operate so as to reduce by more than 3 months the total period of imprisonment during which the prisoner would otherwise be in custody under one or more of those sentences.