An Act to consolidate and amend the law relating to the Criminal Procedure.
PART VI - PROCEEDINGS IN PROSECUTIONS
CHAPTER XL - OF COMMISSIONS FOR THE EXAMINATION OF WITNESSES
504.(1) If the witness is within the local limits of the jurisdiction of any Metropolitan Magistrate, or Court issuing the commission may direct the same to such Metropolitan Magistrate, who thereupon may compel the attendance of, and examine, such witness as if he were a witness in a case pending before himself.
(2) When a commission is issued under this section to the Chief Metropolitan Magistrate, he may delegate his powers and duties under the commission to any Metropolitan Magistrate subordinate to him.
Procedure for witness testimony - national proceedings
EDIT.