General Rule

Except as otherwise required by the Constitution of the United States, by the Organic Act of Guam, by these rules or by the laws of Guam or in rules prescribed by the Supreme Court pursuant to statutory authority, the privilege of a witness, person, government, state, territory, commonwealth or political subdivision thereof, shall be governed by the principles of the common law as they may be interpreted by the courts of Guam in the light of reason and experience.