It is a function of the Director:
(a) to institute and conduct, or to conduct as respondent, any appeal or further appeal relating to a prosecution mentioned in section 12(1) or 13, or to request and conduct a reference under section 414 of the Criminal Code; and
(b) where a prosecution has been brought by another person and an appeal or further appeal relating to that prosecution has been brought, to take over the appeal from that person, whether as appellant or respondent.