247 Release on licence of prisoner serving extended sentence under section 227 or 228
247 Release on licence of prisoner serving extended sentence under section 227 or 228

(1)     This section applies to a prisoner who is serving an extended sentence imposed under section 227 or 228.

(2)     As soon as—

(a)     a prisoner to whom this section applies has served [the requisite custodial period], . . .

(b)     . . .

it is the duty of the Secretary of State to release him on licence.

(3)     . . .

(4)     . . .

(5)     . . .

(6)     . . .

[(7)     In this section—

“the appropriate custodial term” means the period determined by the court as the appropriate custodial term under section 227 or 228;

“the requisite custodial period” means—

(a)     in relation to a person serving one sentence, one-half of the appropriate custodial term, and

(b)     in relation to a person serving two or more concurrent or consecutive sentences, the period determined under sections 263(2) and 264(2).]