78 § 937. Art. 137. Articles to be explained Sections 802, 803, 807-815, 825, 827, 831, 837, 838, 855, 877-934, and 937-939 (articles 2, 3, 7-15, 25, 27, 31, 37, 38, 55, 77-134, and 137-139) of this chapter shall be carefully explained to each enlisted member at the time of his entrance on active duty, or within six days thereafter. They shall be explained again after he has completed six months of active duty, and.i lyain at the time when he reenlists. A complete text of the Uniform Code of Military Justice and of the regulations prescribed by the President thereunder shall be made available to any person on active duty, upon his request, for his personal examination. § 938. Art. 138. Complaints of wrongs Any member of the armed forces who believes himself wronged by his commanding officer, and who, upon due application to that commanding officer, is refused redress, may complain to any superior commissioned officer, who shall forward the complaint to the officer exercising general court-martial jurisdiction over the officer against whom it is made. The officer exercising general court-iiiartial jurisdiction shall examine into the complaint and take proper measures for redressing the wrong complained of; and he shall, as soon as possible, send to the Secretary concerned a true statement of that complaint, with the proceedings had thereon. § 939. A r t. 139. Redress of injuries to property (a) Whenever complaint is made to any commanding officer that willful damage has been done to the property of any person or that his property has been wrongfully taken by members of the armed forces, he may, under such regulations as the Secretary concerned may prescribe, convene a board to investigate the complaint. The board shall consist of from one to three commissioned officers and, for the purpose of that investigation, it has power to summon witnesses and examine them upon oath, to receive depositions or other documentary evidence, and to assess the damages sustained against the responsible parties. The assessment of damages made by the board is subject to the approval of the commanding officer, and in the amount approved by him shall be charged against the pay of the offenders. The order of the commanding officer directing charges herein authorized is conclusive on any disbursing officer for the payment by him to the injured parties of the damages so assessed and approved. (b) If the offenders cannot be ascertained, but the organization or detachment to which they belong is known, charges totaling the amount of damages assessed and approved may be made in such proportion as may be considered just upon the individual members thereof who are shown to have been present at the scene at the time the damages complained of were inflicted, as determined by the approved findings of the board. § 940. A r t. 140. Delegation by the President The President may delegate any authority vested in him under this chapter, and provide for the subdelegation of any such authority.