"Treason" defined -- Evidence necessary to convict.

Treason against the Commonwealth shall consist only in levying war against it, or in adhering to its enemies, giving them aid and comfort. No person shall be convicted of treason except on the testimony of two witnesses to the same overt act, or his own confession in open court.

Text as Ratified on: August 3, 1891, and revised September 28, 1891.
History: Not yet amended.