20 ILCS 1807/103b: Article 103b. Aiding the enemy.

Any person who:

(1) aids, or attempts to aid, the enemy with arms, ammunition, supplies, money, or other things; or

(2) without proper authority, knowingly harbors or protects or gives intelligence to, or communicates or corresponds with or holds any intercourse with the enemy, either directly or indirectly;

shall be punished as a court-martial may direct.