KS Const., Article BOR, Section 13

Treason. Treason shall consist only in levying war against the state, adhering to its enemies, or giving them aid and comfort. No person shall be convicted of treason unless on the evidence of two witnesses to the overt act, or confession in open court. History: Adopted by convention, July 29, 1859; ratified by electors, October 4, 1859; L. 1861, p. 49.