Special provisions as to patients sentenced to imprisonment, etc.N.I.
31.—(1) Where a patient who is liable to be detained for treatment or subject to guardianship under this Part—
(a)is detained in custody in pursuance of any sentence or order passed or made by a court in the United Kingdom (including an order committing or remanding him in custody); and
(b)is so detained in custody for a period exceeding, or for successive periods exceeding in the aggregate, 6 months;
he shall cease to be so liable or subject at the expiration of that period.
(2) Where any such patient is detained in custody as mentioned in paragraph (1)(a) but does not cease under that paragraph to be liable to be detained for treatment or subject to guardianship under this Part, then—
(a)if apart from this paragraph he would have ceased to be liable to be detained for treatment or subject to guardianship under this Part on or before the day on which he is discharged from custody, he shall not cease and shall be deemed not to have ceased to be so liable or subject until the end of that day; and
(b)in any case, Articles 29 and 30 shall apply in relation to him as if he had absented himself without leave on that day.