Section 12(1) of the Principal Act is amended by inserting after paragraph (e) the following paragraphs:(ea) to issue to guidelines in relation to prosecutions, including in respect of the offences, or classes of offences, that are to be referred to the Director for the institution and conduct of proceedings; and(i) prosecutors; and(ii) persons acting on the Director's behalf; and(iii) the Commissioner of Police; and(iv) any persons or Agencies who conduct prosecutions (eb) to grant indemnities from prosecution, whether on indictment or otherwise; and(ec) to give undertakings to persons that answers given, or statements or disclosures made, by those persons will not be used in evidence against those persons; and