The Act of March 21, 1942

56 Stat. 173, 18 U.S.C.A. 97a.

* * * whoever shall enter, remain in, leave, or commit any act in any military area or military zone prescribed, under the authority of an Executive order of the President, by the Secretary of War, or by any military commander designated by the Secretary of War, contrary to the restrictions applicable to any such area or zone or contrary to the order of the Secretary of War or any such military commander, shall, if it appears that he knew or should have known of the existence and extent of the restrictions or order and that his act was in violation thereof, be guilty of a misdemeanor and upon conviction shall be liable to a fine of not to exceed $5,000 or to imprisonment for not more than one year, or both, for each offense.