Del. Const. art. VI, § 3

Treason against this State shall consist only in levying war against it, or in adhering to the enemies of the Government, giving them aid and comfort. No person shall be convicted of treason unless on the testimony of 2 witnesses to the same overt act or on confession in open court. 84 Del. Laws, c. 281 and 85 Del. Laws, c. 5;