Okla. Stat. tit. 76, § 76-84: Discovery - Use of materials

DISCOVERY; USE OF MATERIALS.

A. Trust claims materials and trust governance documents shall

be presumed to be relevant and authentic, subject to the Rules of

Evidence governing admissibility. Any party may present trust

claims materials to prove alternative causation for a plaintiff's

injuries or to allocate liability for the plaintiff's injury. No

claims of privilege may apply to trust claims materials or trust

governance documents.

B. A defendant in a personal injury claim may seek discovery

against a personal injury trust identified under Section 3 of this

act. The plaintiff may not claim privilege or confidentiality to

bar discovery under this subsection and shall provide consent or

other expression of permission that may be required by the personal

injury trust to release information and materials sought by the

defendant.