52 fications by an officer exercising summary court-martial jurisdiction over the command or before the imposition of punishment under section 815 of this title (article 16). (d) Periods in which the accused was absent from territory in which the United States has the authority to apprehend him, or in the custody of civil authorities, or in the hands of the enemy, shall be excluded in computing the period of limitation prescribed in this article. (e) For an offense the trial of which in time of war is certified to the President by the Secretary concerned to be detrimental to the prosecution of the war or inimical to the national security, the period of limitation prescribed in this article is extended to six months after the termination of hostilities as proclaimed by the President or by a joint resolution of Congress. (f) When the United States is at war, the running of any statute of limitations applicable to any offense under this chapter— (1) involving fraud or attempted fraud against the United States or any agency thereof in any manner, whether by conspiracy or not; (2) committed in connection with the acquisition, care, handling, custody, control, or disposition of any real or personal property of the United States; or (3) committed in connection with the negotiation, procurement, award, performance, payment, interim financing, cancellation, or other termination or settlement, of any contract, subcontract, or purchase order which is connected with or related to the prosecution of the war, or with any disposition of termination inventory by any war contractor or Government agency; is suspended until three years after the termination of hostilities as proclaimed by the President or by a joint resolution of Congress. § 844. Art. 44. Former jeopardy (a) No person may, without his consent, be tried a second time for the same offense. (b) No proceeding in which an accused has been found guilty by a court-martial upon any charge or specification is a trial in the sense of this article until the finding of guilty has become final after review of the case has been fully completed. (c) A proceeding which, after the introduction of evidence but before a finding, is dismissed or terminated by the convening authority or on motion of the prosecution for failure of available evidence or witnesses without any fault of the accused is a trial in the sense of this article. § 845. Art. 45. Pleas of the accused (a) If an accused arraigned before a court-martial makes an irregular pleading, or after a plea of guilty sets up matter inconsistent with the plea, or if it appears that he has entered the plea of guilty improvidently or through lack of understanding of its meaning and effect, or if he fails or refuses to plead, a plea of not guilty shall be entered in the record, and the court shall proceed as though he had pleaded not guilty. (b) A plea of guilty by the accused may not be received to any charge or specification alleging an offense for which the death penalty may be adjudged.