Section 41
SEC. 41. The Director of Public Works, or any official by him subpoenas, thereunto specifically authorized, in making investigations under this Act shall be authorized, to issue, of his own accord, or on request of any interested party, subpoenas and subpoenas duces tecum for witnesses in any case or inquiry pending before him and shall make the investigation in the province where the waters covered by the investigation are situated: Provided, however, That in the event of the witness residing outside of the province in which the investigation is held, or of his being unable to appear before the said Director or authorized official, his testimony may be received by deposition, in accordance with the provisions of Act Numbered One hundred and ninety, before the officers authorized by said Act for taking depositions. In case of disobedience to any of the subpoenas mentioned in "this section, the Director of Public Works or authorized official may invoke the aid of the Court of First Instance of the province in which the person subpoenaed resides to require such person to appear Witness fees and evidence or to make deposition. Such witnesses shall be entitled to the same fees and traveling expenses as witnesses appearing before the Courts of First Instance in civil cases: Provided, however, That witnesses so subpoenaed and cost of depositions so requested shall be paid by the Insular Government, in accordance with rules prescribed by the Insular Auditor.