7. Where an application for a vesting order is made by a person with power to acquire land otherwise than by agreement (other than a licence holder) in respect of land which includes land belonging to a licence holder and used for any purpose connected with the carrying on of the activities which he is authorised by his licence to carry on and that licence holder has made a representation to the Department concerned before the expiration of one month from the date of the last publication of the notice mentioned in paragraph 2(a) of Schedule 6 to the [1972 C. 9 (N.I.)] Local Government Act (Northern Ireland) 1972, the Department concerned shall not make the vesting order unless the Department has certified—
(a)that the land can be purchased and not replaced without serious detriment to the carrying on of those activities; or
(b)that, if purchased, the land can be replaced by other land belonging to, or available for acquisition by, the licence holder without serious detriment to the carrying on of those activities.