The President did not immediately decide, but left it to be treated as a question of camp and local police, in the discretion of each commander. Under this theory, later in the war, some commanders excluded, others admitted such fugitives to their camps; and the curt formula of General Orders, "We have nothing to do with slaves. We are neither negro stealers nor negro catchers," was easily construed by subordinate officers to justify the practice of either course. _Inter arma silent leges_. For the present, Butler was instructed not to surrender such fugitives, but to employ them in suitable labor, and leave the question of their final disposition for future determination. Congress greatly advanced the problem, soon after the battle of Bull Run, by adopting an amendment which confiscated a rebel master's right to his slave when, by his consent, such slave was employed in service or labor hostile to the United States. The debates exhibited but little spirit of partizanship, even on this feature of the slavery question. The border State members did not attack the justice of such a penalty. They could only urge that it was unconstitutional and inexpedient. On the general policy of the war, both houses, with but few dissenting votes, passed the resolution, offered by Mr. Crittenden, which declared that the war was not waged for oppression or subjugation, or to interfere with the rights or institutions of States, "but to defend and maintain the supremacy of the Constitution, and to preserve the Union with all the dignity, equality, and rights of the several States unimpaired." The special session adjourned on August 6, having in a single month completed and enacted a thorough and comprehensive system of war legislation.