“(aa) in section 8 (8) for the reference to the Director of Public Prosecutions there shall be substituted a reference to the convening authority and for the references to a judge of the High Court there shall be substituted references to a superior authority; and, for the purposes of this paragraph, each of the following shall be a superior authority:

(i) the Minister for Defence,

(ii) the Adjutant-General of the Defence Forces,

(iii) any general officer or flag officer (within the meaning, in each case, of the Defence Act, 1954) appointed by the Minister for Defence for the purpose, and”.