Except as otherwise provided in this Title, the rules for determining the competency of witnesses in civil actions are applicable also to criminal actions and proceedings. NOTE: Section 75.50 is substantively the same as former § 1321. See also Cal. Pen. Code § 1321. COURT DECISIONS: AThere is no basis for engrafting a subsequent California constitutional change imposed by California's Voters onto Guam common law.@ [Issue of whether Guam law required an interpreter unless such was expressly waived by the Defendant.] People v. Nuguid, Crim. Case No. 89-00073A, D.C. Guam, App.Div., 10/12/93.