Louisiana Revised Statutes Tit. 37, § 2363. Privileged communications

A. In judicial proceedings, whether civil, criminal, or juvenile, legislative and administrative proceedings, and proceedings preliminary and ancillary thereto, a patient or client or his legal representative may refuse to disclose or prevent the disclosure of confidential information, including information contained in administrative records, communicated to a psychologist, a licensed psychological associate, or a licensed specialist in school psychology licensed in accordance with the provisions of this Chapter, or persons reasonably believed by the patient or client to be so licensed, or to their employees or other persons under their supervision, for the purpose of diagnosis, evaluation, or treatment of any mental or emotional condition or disorder.

B. In the absence of evidence to the contrary, the psychologist, the licensed psychological associate, or the licensed specialist in school psychology is presumed to be authorized to claim the privilege on behalf of the patient or client.

C. This privilege may not be claimed by or on behalf of the patient or client in the following circumstances:

D. Notwithstanding the provisions of this Section, testimonial privileges, exceptions, and waiver with respect to communications between a psychologist, a licensed psychological associate, or a licensed specialist in school psychology and patient are governed by the Louisiana Code of Evidence.