6 GCA § 7405: Certificate of the Clerk of Court.

When an affidavit is taken before a judge or a court in any state, territory, possession, commonwealth or trust territory of the United States, or in a foreign country, or in the District of Columbia, the genuineness of the signature of the judge, the existence of the court, and the fact that such judge is a member thereof, must be certified by the clerk of court under the seal thereof.