s 124 Provisions as to persons unlawfully at large
124.—(1) A person who, having been sentenced by a subordinate military court to imprisonment or detention or to detention by a disciplinary officer, is at large may (without prejudice to any other power of arrest) be arrested by any police officer without warrant and taken to any place in which the person may be required to be detained in accordance with this Act or any regulations made under this Act. (2) Where any person sentenced by a subordinate military court to imprisonment or detention or sentenced to detention by a disciplinary officer is at large at any time during the period for which the person is liable to be detained pursuant to the sentence, no account is to be taken, in calculating the period for which the person is liable to be so detained, of any time elapsing after the person was at large and before the person is either taken into custody or received into a military prison, whether pursuant to the same sentence or to a sentence of any other court.