General Order Number 2
St. Louis, Mo., March 13, 1862

1.   Martial law has never been legally declared in Missouri except in the city of St. Louis, and on and in the immediate vicinity of the railroads and telegraph lines and even in these localities military officers are specially directed not to interfere with lawful process of any loyal civil court. It is believed that the time will soon come when the rebellion in Missouri may be considered as terminated, and when even the partial and temporary military restraint which has been exercised in particular places, may be entirely withdrawn. By none is this more desired than by the General commanding.

2.   It must, however, be borne in mind that in all places subject to the incursions of the enemy, or to the depredations of insurgents and guerrilla bands, the military are authorized, without any formal declaration of martial law, to adopt such measures as may be necessary to restore the authority of the Government, and punish all violations of the laws of war. This power will be exercised only where the peace of the country and the success of the Union cause absolutely require it.

3.   Evidence has been received at these Headquarters that Major General Sterling Price has issued commissions or licenses to certain bandits in this State authorizing them to raise "Guerrilla forces," for the purpose of plunder and marauding. Gen. Price ought to know that such a course is contrary to the rules of civilized warfare, and that every man that enlists in such an organization forfeits his life, and becomes an outlaw. All persons are hereby warned that, if they join any guerrilla band, they will not, if captured, be treated as ordinary prisoners of war, but will be hung as robbers and murderers. Their lives shall atone for the barbarity of their General.

By Command of Major General Halleck
N. H. McLean, Assistant Adjutant General