La. Stat. tit. 26 § 100
Hearings may be held by the commissioner or by any person designated and authorized by the commissioner. If the hearing is to be held by a person designated by the commissioner, that person shall take an oath for the faithful performance of his duties. The oath may be administered by anyone qualified by law to administer oaths in this state. The commissioner, or the person designated to hold a hearing, may administer oaths, issue subpoenas for the attendance of witnesses and the production of books, papers, accounts, and documents, and examine witnesses and receive testimony at the hearing. Whenever a hearing is conducted by a person designated by the commissioner to hold the hearing, the testimony received shall be reduced to writing and a transcript thereof, together with all documentary evidence, if any, and all written arguments or briefs submitted shall be made and certified by the hearing examiner to the commissioner for his consideration and decision.
La. R.S. § 26:100