138.—Every person subject to military law who knowingly makes a false statement in respect of prolongation of leave of absence is guilty of an offence against military law and shall, F115[where a charge under this section is disposed of summarily under section 177C, 178C or 179C, as the case may be, be liable to suffer any punishment awardable thereunder or,] on conviction by court-martial, be liable to suffer, if an officer, dismissal from the Defence Forces or any less punishment awardable by a court-martial, or, if a man, detention or any less punishment awardable by a court-martial.