Immigration – Leave to remain. It had not been unlawful for the defendant Secretary of State not to afford a 60 day period to the claimants in order to seek to obtain further Tier 2 employment following the revocation of their sponsors' licences. The Upper Tribunal (Immigration and Asylum Chamber) held that the Secretary of State's decision was rational, as there were material distinctions which she was justified in drawing between Tier 4 and Tier 2.