La. R.S. 23:1296

In the discharge of the duties imposed by this Chapter, the administrator and any duly authorized representative shall have the power to administer oaths and affirmations, take depositions, certify to official acts, and issue subpoenas to compel the attendance of witnesses and the production of books, papers, correspondence, memorandums, and other records deemed necessary as evidence in connection with an investigation under this Subpart. Subpoenas issued pursuant to this Section may be served by any person duly authorized by the administrator.