73. Search for evidence at place in designated state.
(1) Where it appears to a judge at a sitting of any court that -
(a) criminal proceedings have been instituted or a criminal investigation is taking place, and
(b) evidence for the purposes of the proceedings or investigation may be obtained at a place in a designated state,
the judge may, in accordance with the relevant international instrument, issue a letter (a "letter of request") requesting assistance in obtaining the evidence.
(2) Application for a letter of request may be made by the Director of Public Prosecutions or a person charged in any such proceedings that have been instituted.
(3) The letter of request shall be sent to -
(a) the Central Authority for transmission to the appropriate authority, or