“ Such members may, at the direction of the Military Government of the United States Zone of Occupation, serve on any of the several military tribunals above mentioned, which tribunals are a component part of the military occupational forces of the United States, and upon which the members designated herein shall perform active service during the period of their designation. ”

“ Personnel so assigned or detailed shall receive such compensation and allowances for expenses as may be determined by the Secretary of the Army and as may be payable from appropriations or funds available to the Department of the Army for such purposes, except that personnel assigned or detailed from the Department of the Navy shall be entitled by reason of their military grade and service and as may be payable from appropriations or funds available to the Department of the Navy for such purposes. ”