“i. The Secretary of State must intend to deport the person and can only use the power to detain for that purpose; ii. The deportee may only be detained for a period that is reasonable in all the circumstances;iii. If, before the expiry of the reasonable period, it becomes apparent that the Secretary of State will not be able to effect deportation within that reasonable period, he should not seek to exercise the power of detention; iv. The Secretary of State should act with the reasonable diligence and expedition to effect removal.”
"The Secretary of State's sole ground of appeal is that the judge erred in law in rejecting the Secretary of State's submission in assessing: (a) whether detention has lasted for a period of time longer than that which is reasonably necessary for the purpose of deportation; and/or (b) deportation is possible within a reasonable period of time. The time taken to resolve the detainee’s statutory appeal against deportation should generally be left out of account. The learned judge should have decided the time taken to resolve such a statutory appeal should generally be left out of account and should as a result have decided that the respondent's continued detention was not unlawful."