La. Stat. tit. 45 § 1453
In any case where the reporter claims the privilege conferred by this Part, the persons or parties seeking the information may apply to the district court of the parish in which the reporter resides for an order to revoke the privilege. In the event the reporter does not reside within the state, the application shall be made to the district court of the parish where the hearing, action or proceeding in which the information is sought is pending. The application for such an order shall set forth in writing the reason why the disclosure is essential to the protection of the public interest and service of such application shall be made upon the reporter. The order shall be granted only when the court, after hearing the parties, shall find that the disclosure is essential to the public interest. Any such order shall be appealable under Article 2083 of the Louisiana Code of Civil Procedure. In case of any such appeal, the privilege set forth in R.S. 45:1452 shall remain in full force and effect during pendency of such appeal.
La. R.S. § 45:1453