4.—(1) Section 20 is modified as follows.
(2) In subsection (1) after “decide” insert “in relation to each offence”.
(3) In subsection (2) after “section 21” insert “in relation to the offence in question”.
(4) In subsection (3) after “decide” insert “in relation to each offence”.
(5) In subsection (4) after “section 21” insert “in relation to the offence in question”.