‘Where a person is under section 3(5) or (6) above liable to deportation, then subject to the following provisions of this Act the Secretary of State may make a deportation order against him, that is to say, an order requiring him to leave and prohibiting him from entering the United Kingdom; and a deportation order against a person shall invalidate any leave to enter or remain in the United Kingdom given him before the order is made or while it is in force’
‘unduly harsh does not equate with uncomfortable, inconvenient, undesirable or merely difficult. Rather, it poses a considerably more elevated threshold. “Harsh” in this context, denotes something severe, or bleak. It is the antithesis of pleasant or comfortable. Furthermore, the addition of the adverb “unduly” raises an already elevated standard still higher’ (paragraph 41). That is to say, the threshold is ‘a highly elevated threshold or standard’; but not as high as ‘very compelling circumstances’ (paragraph 42). In cases where neither Exception applies, ‘a full proportionality assessment is required’