Okla. Stat. tit. 12, § 12-2509: Secrets of state and other official information -

Governmental privileges.

A. If the law of the United States creates a governmental

privilege that the courts of this state must recognize under the

Constitution of the United States, the privilege may be claimed as

provided by the law of the United States.

B. No other governmental privilege is recognized except as

created by the Constitution or statutes of this state.

C. If a claim of governmental privilege is sustained and it

appears that a party is thereby deprived of material evidence, the

court shall make any further orders the interests of justice

require, including striking the testimony of a witness, declaring a

mistrial, finding upon an issue as to which the evidence is relevant

or dismissing the action.