Louisiana Revised Statutes Tit. 13, § 3667.1. Legislators, legislative officials, and personnel not required to appear as witnesses in court or at administrative proceedings

A. Members of the legislature, the clerk of the House of Representatives, the secretary of the Senate, and employees of the House of Representatives, the Senate, and the Legislative Bureau, when such persons are serving or employed full time during a session of the legislature, shall not be compelled to attend any court or administrative proceedings as witnesses during any session of the legislature or at any time during which such persons are engaged in activities in connection with or ordered by the legislature or any legislative committee or subcommittee, or any other committee or commission appointed by the governor or other person authorized by law or legislative resolution to make such appointment. The provisions of this Subsection shall not apply in any criminal felony case wherein the member, clerk, secretary, or employee whose attendance is sought is a material, factual witness to the crime or any element of the crime.

B. Legislative employees shall not be exempt from such attendance unless their legislative service or employment is certified to the court by an affidavit executed by the presiding officer or the clerk or secretary of the respective house.

C. Upon notifying the proper court of the issuance of a subpoena contrary to the provisions of this Section, and after presenting the court with the proper identification or certification, the court shall quash the subpoena. The court's decision whether to quash such a subpoena shall be an appealable order.