(7) Subjcct to such conditions as may be prescribed—
(a) the Chiel Inspector or the Superintendent of the Certified Institution may at any time grant permission to a person detained in a Certified Institution to absent himseif for short periads : and
(b) the Chief Inspector may at any time release such person conditionaily and issue him a licence thevefor.
(2) Any such licence shail be in force until the expiry of the term for which the person was ordered 1o be detained in a Certified Institution, unless sooner r(;voked.
(3) The period during which such person is absent from Certified Institution by permission or by licence as aforesaid, shall, for the purpose of computing his term of detention in a Certified Institution, be deemed to be part of his detention.