Louisiana Code of Evidence Art. 502. Waiver of privilege

A. Waiver. A person upon whom the law confers a privilege against disclosure waives the privilege if he or his predecessor while holder of the privilege voluntarily discloses or consents to disclosure of any significant part of the privileged matter. This rule does not apply if the disclosure itself is privileged.

B. Disclosure under compulsion or without opportunity to claim. A claim of privilege is not defeated by a disclosure which was compelled or made without opportunity to claim the privilege.

C. Joint holders. Where two or more persons are joint holders of a privilege, a waiver of the right of one joint holder to claim the privilege does not affect the right of another joint holder to claim the privilege.