For section 18 of the Act, the functions specified in these Regulations are prescribed in relation to the Director of Public Prosecutions of the Commonwealth. They include (a) to begin prosecutions on indictment for indictable offences against the Agvet Code, or the Agvet Regulations, of a State; (b) to carry on prosecutions of the kind mentioned in paragraph (a), whether or not begun by the Director; (c) to begin proceedings for the commitment of persons for trial for indictable offences agains