Section 11
SEC. 11. Such attendance of witnesses and the production of such documentary evidence may be required from any place in the Philippines at any designated place of hearing at Government expense. And in case of disobedience to a subpoena the Commission may invoke the aid of any municipal or justice of the peace court of the Philippines or any court of competent jurisdiction in the place of hearing requiring the attendance and testimony of witnesses and the production of documentary evidence, and such court within the jurisdiction of which such inquiry is carried on may, in case of contumacy or refusal to obey a subpoena issued to any corporation or other person, issue an order requiring such corporation or other person to appear before the Commission, or to produce documentary evidence if so ordered or to give evidence touching the matter in question; and any failure to obey such order of the court may be punished by such court as a contempt thereof.