11.3—General.

(a) Background. The following crimes and elements thereof are intended for use by military commissions established pursuant to 32 CFR part 9, and Military Order of November 13, 2001, “Detention, Treatment, and Trial of Certain Non-Citizens in the War Against Terrorism,” the jurisdiction of which extends to offenses or offenders that by statute or the law of armed conflict may be tried by military commission as limited by Military Order of November 13, 2001, “Detention, Treatment, and Trial of Certain Non-Citizens in the War Against Terrorism.” No offense is cognizable in a trial by military commission if that offense did not exist prior to the conduct in question. These crimes and elements derive from the law of armed conflict, a body of law that is sometimes referred to as the law of war. They constitute violations of the law of armed conflict or offenses that, consistent with that body of law, are triable by military commission. Because this document is declarative of existing law, it does not preclude trial for crimes that occurred prior to its effective date.