§ RULE 508. SECRETS OF STATE AND OTHER OFFICIAL INFORMATION; GOVERNMENTAL PRIVILEGES
RULE 508. SECRETS OF STATE AND OTHER OFFICIAL INFORMATION; GOVERNMENTAL PRIVILEGES
(a) Claim of Privilege. 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) Recognition of Privilege. A governmental privilege existing at common law, or created by the Constitution, statute or court rule of this State, shall be recognized.
(c) Effect of Sustaining Claim. 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.