SEC. 13. Section twenty-six of Act Numbered Twenty-three hundred and seven is hereby amended to read as follows:
"SEC. 26. (a) The said Board, or any member thereof, may issue subpoenas and subpoenas duces tecum, for witnesses in any matter or inquiry pending before the Board or any member thereof; and require the production of all books, papers, tariffs, contracts, agreements, and all other documents, which the Board or any member thereof may deem necessary in any proceeding. Such process shall be issued under the seal of the Board, signed by one of the members thereof and by the secretary, and may be served by any person of full age. In case of disobedience to such subpoena, the Board may invoke the aid of the Supreme Court, or of any Court of First Instance of the Philippine Islands in requiring the attendance and testimony of witnesses and the production of books, papers and documents under the provisions of this chapter; and the Supreme Court or any Court of First Instance of the Philippine Islands within the jurisdiction of which such inquiry is carried on, shall, in case of contumacy or refusal to obey a subpoena, issue to any public utility subject to the provisions of this Act, or to any other person, an order requiring such public utility or other person to appear before the Board (and produce books and papers if so ordered) and 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.
"(b) Upon the application of any member of said Board of to any Court of First Instance, or to the Supreme Court, a subpoena may be issued directing any person in the Philippine Islands to appear as a witness before said Board and to produce for the inspection of the Board, or any member thereof, any books, papers, documents, letters or other records or things in his possession. Any witness failing to obey such subpoena shall be liable to punishment by the Supreme Court or Courts of First Instance as the case may be, in the same manner and to the same extent as if he had disobeyed a subpoena issued out of the Supreme Court or Court of First Instance in a matter pending before either of said courts.
"(c) Any member of the Board shall have the power to administer oaths to all witnesses who may be called before the Board or any member thereof.
"(d) Any person who shall testify falsely or make any false affidavit or oath before the Board or before any of its members shall be guilty of perjury, and upon conviction thereof in a court of competent jurisdiction, shall be punished as provided by law.
"(e) Witnesses appearing before said Board in obedience to subpoena or subpoena duces tecum, shall be entitled to receive the same fees and mileage allowance as witnesses attending Courts of First Instance in civil cases.
"(f) Any person who shall neglect or refuse to attend or testify or answer any lawful enquiry or produce before the Board, or any member thereof, books, papers, tariffs, contracts, agreements and documents or other thing called for by said Board, or any member thereof, if in his power to do so, in obedience to the subpoena or lawful enquiry of the Board, upon conviction thereof by a court of competent jurisdiction, shall be punished by a fine of not more than ten thousand pesos or by imprisonment for not more than one year, or by both such fine and imprisonment, in the discretion of the court.
(g) Any Person who shall obstruct the Board, or any one or more of its members, in its discharge of official duties, or who shall conduct himself in a rude, disrespectful, or disorderly manner before the Board, or any member thereof, while engaged in the discharge of official duty, shall, for each offense upon conviction thereof in a court of competent jurisdiction, be punished by a fine not exceeding one thousand pesos or by imprisonment not exceeding one year, or both such fine and imprisonment in the discretion of the court.
"If upon investigation it shall be found that any rate, toll, charge, schedule or joint rate or rates is unjust, unreasonable, insufficient or unjustly discriminatory or preferential, or otherwise in violation of any of the provisions of this Act, or that any regulation, practice, act, or service complained of is unjust, unreasonable, insufficient, preferential or otherwise in violation of any of the provisions of this Act, or if it be found that any service is inadequate or that any reasonable service can not be obtained, the public utility found to be at fault may at the discretion of the Board of Public Utility Commissioners be charged with the expenses incurred by the Board upon such investigation, to be recovered by an ordinary action in the courts, brought by the Board of Public Utility Commissioners against such public utility.
"(i) Any Person who shall destroy, injure or interfere with any apparatus or appliance owned or operated by or in charge of the Board or its agent shall be deemed guilty of a misdemeanor and upon conviction shall be punished by a fine not exceeding one thousand pesos or imprisonment for a period not exceeding six months or both in the discretion of the court.
"Any public utility permitting the destruction, injury to or interference with, any such apparatus or appliance, shall forfeit a sum not exceeding four thousand pesos for each offense.
" (i) A substantial compliance with the requirements of this Act shall be sufficient to give effect to all the rules, orders, acts and regulations of the Board and they shall not be declared inoperative, illegal or void for any omission of a technical nature in respect thereto."