Article I The purpose of this Ordinance is to provide for the establishment of military tribunals which shall have power to try and punish persons charged with offenses recognized as crimes in Article II of Control Council Law No. 10, including conspiracies to commit any such crimes. Nothing herein shall prejudice the jurisdiction or the powers of other courts established or which may be established for the trial of any such offenses. Article II (_a_) Pursuant to the powers of the Military Governor for the United States Zone of Occupation within Germany and further pursuant to the powers conferred upon the Zone Commander by Control Council Law No. 10 and Articles 10 and 11 of the Charter of the International Military Tribunal annexed to the London Agreement of 8 August 1945 certain tribunals to be known as “Military Tribunals” shall be established hereunder. (_b_) Each such tribunal shall consist of three or more members to be designated by the Military Governor. One alternate member may be designated to any tribunal if deemed advisable by the Military Governor. Except as provided in subsection (_c_) of this Article, all members and alternates shall be lawyers who have been admitted to practice, for at least five years, in the highest courts of one of the United States or its territories or of the District of Columbia, or who have been admitted to practice in the United States Supreme Court. (_c_) The Military Governor may in his discretion enter into an agreement with one or more other zone commanders of the member nations of the Allied Control Authority providing for the joint trial of any case or cases. In such cases the tribunals shall consist of three or more members as may be provided in the agreement. In such cases the tribunals may include properly qualified lawyers designated by the other member nations. (_d_) The Military Governor shall designate one of the members of the tribunal to serve as the presiding judge. (_e_) Neither the tribunals nor the members of the tribunals or the alternates may be challenged by the prosecution or by the defendants or their counsel. (_f_) In case of illness of any member of a tribunal or his incapacity for some other reason, the alternate, if one has been designated, shall take his place as a member in the pending trial. Members may be replaced for reasons of health or for other good reasons, except that no replacement of a member may take place, during a trial, other than by the alternate. If no alternate has been designated, the trial shall be continued to conclusion by the remaining members. (_g_) The presence of three members of the tribunal or of two members when authorized pursuant to subsection (_f_) _supra_ shall be necessary to constitute a quorum. In the case of tribunals designated under (_c_) above the agreement shall determine the requirements for a quorum.