1. The rule that, to support a perjury conviction, two independent witnesses (or one witness along with corroborating evidence) must establish that the alleged perjurer gave false testimony. [Cases: Perjury 34. C.J.S. Perjury § 43.]
2. The rule, as stated in the U.S. Constitution, that no person may be convicted of treason without two witnesses to the same overt act — or unless the accused confesses in open court. U.S. Const. art. IV, § 2, cl.
2. [Cases: Treason 13. C.J.S. Treason §§ 14–15.]
