“7. Although the power which is given to the Secretary of State in paragraph 2 to detain individuals is not subject to any express limitation of time, I am quite satisfied that it is subject to limitations. First of all, it can only authorize detention if the individual is being detained in one case pending the making of a deportation order and, in the other case, pending his removal. It cannot be used for any other purpose. Secondly, as the power is given in order to enable the machinery of deportation to be carried out, I regard the power of detention as being impliedly limited to a period which is reasonably necessary for that purpose. The period which is reasonable will depend upon the circumstances of the particular case. What is more, if there is a situation where it is apparent to the Secretary of State that he is not going to be able to operate the machinery provided in the Act for removing persons who are intended to be deported within a reasonable period, it seems to me that it would be wrong for the Secretary of State to seek to exercise his power of detention. 8. In addition, I would regard it as implicit that the Secretary of State should exercise all reasonable expedition to ensure that the steps are taken which will be necessary to ensure the removal of the individual within a reasonable time.”
“128. What about those who have no outstanding legal challenges? Here, the fact that the detained person has refused voluntary return should not be regarded as a "trump card" which enables the Secretary of State to continue to detain until deportation can be effected, whenever that may be. That is because otherwise, as I said at para 51 of my judgment in R(I), "the refusal of an offer of voluntary repatriation would justify as reasonable any period of detention, no matter how long, provided that the Secretary of State was doing his best to effect the deportation." If the refusal of voluntary return has any relevance in such cases even if a risk of absconding cannot be inferred from the refusal, it must be limited. That was the view of Simon Brown LJ in R(I) and Keene LJ in R(A) and I agree with them.”