The commissioner may issue subpoenas to compel the attendance of witnesses and the production of books and papers. He shall have power to administer oaths to ascertain facts to enable him properly to perform his duties, and may reduce the statements of the person sworn to writing and require him to swear and subscribe thereto. The commissioner may, ex parte, apply for and obtain from the Superior Court an order to compel a person to submit to examination in reference to such matters.
N.J.S. § 54:29A-65