Immigration – Deportation. There had been a material change of circumstances since an exception to the appellant's deportation had been established, so as to render lawful a reconsideration by the Secretary of State as to whether the exception preventing deportation subsisted. The Court of Appeal, Civil Division, in dismissing the appellant's appeal, further held that it should be regarded as an obligation of good practice on the part of the Secretary of State to spell out in the notice of decision what were said to be the material changes of circumstance which had justified and founded the fresh decision and deportation order.