In section 24 of the principal Act, in sub-section (6), after the proviso, the following Explanation shall be inserted and shall be deemed to have been inserted with effect from the 18th day of December, 1978, namely:--
'Explanation.--For the purposes of this sub-section,--
(a) "regular Cadre of Prosecuting Officers" means a Cadre of Prosecuting Officers which includes therein the post of a Public Prosecutor, by whatever name called, and which provides for promotion of Assistant Public Prosecutors, by whatever name called, to that post;
(b) "Prosecuting Officer" means a person, by whatever name called, appointed to perform the functions of a Public Prosecutor, an Additional Public Prosecutor or an Assistant Public Prosecutor under this Code.'.