Subject to the provisions of the next following section, where an offence under this Act triable by court-martial has been committed, or is reasonably suspected of having been committed, by any person while subject to air-force law, then in relation to that offence he shall be treated, for the purposes of the provisions of this Act relating to arrest, keeping in custody, investigation of charges, F2summary dealing with charges trial and punishment by court-martial (including F3. . ., review, F4 . . . and suspension) and execution of sentences as continuing subject to air-force law notwithstanding his ceasing at any time to be subject thereto.

Where, while a person is in air-force or military custody by virtue of this section (whether before, during or after trial) he commits, or is reasonably suspected of having committed, an offence which if he were subject to air-force law would be an offence under this Act triable by court-martial, then in relation to that offence or suspected offence he shall be treated, for the purposes of the provisions of this Act mentioned in the last foregoing subsection F5, as having been subject to air-force law when the offence was committed or is suspected of having been committed and as continuing subject to air-force law thereafter.

Where apart from this subsection any provision of this Act would under the last foregoing subsection apply to a person, in relation to different offences, as to a person having different ranks, it shall apply to him as to a person having the lower or lowest of those ranks.