Code of Judicial Conduct / Ethics
SECTION 12. Functions of the JIO during hearings. - The JIO shall have the power to administer oaths to the parties and their witnesses, and to issue subpoenae ad testificandum and duces tecum, conduct ocular inspections and take depositions of the complainant or witnesses, as may be warranted and in accordance with the Rules of Court. The failure or refusal to obey or comply with the subpoena ad testificandum and duces tecum issued by the JIO shall be referred to the Supreme Court for contempt proceedings, which shall proceed independently of the administrative proceedings.