Who may grant the writ.
Section 526
SEC. 526. Who may grant the writ. — The writ of habeas corpus may be granted by the Supreme Court, or any judge thereof, in term time or in vacation, and if so granted it shall be enforceable anywhere in the Philippine Islands, and it shall be made returnable before the court or any judge thereof. It may also be granted by a Court of First Instance, or a judge thereof, in term time or in vacation, and returnable before himself, enforceable within his judicial district only.