20In relation to any time before the coming into force of section 61 of the Criminal Justice and Court Services Act 2000 (abolition of sentences of detention in a young offender institution, custody for life etc), section 189 of the Criminal Justice Act 2003 has effect with the following modifications—
(a)in subsection (1), after the first “imprisonment” insert “or, in the case of a person aged at least 18 but under 21, a sentence of detention in a young offender institution”,
(b)in that subsection, after the second “imprisonment” insert “or detention in a young offender institution”, and
(c)in subsection (1B), after “imprisonment” insert “or detention in a young offender institution”.