If it appears to the Secretary of State, in the case of any patient who is neither a British citizen nor a Commonwealth citizen having the right of abode in the United Kingdom by virtue of section 2(1)(b) of the M1Immigration Act 1971 and who is receiving treatment for mental illness F1(including personality disorder) as an in-patient in a hospital in Scotland, that proper arrangements have been made for the removal of that patient to a country or territory outside the United Kingdom, the Isle of Man and the Channel Islands and for his care or treatment there, and that it is in the interests of the patient to remove him, the Secretary of State may by warrant authorise the removal of the patient from the place where he is receiving treatment as aforesaid, and may give such directions as the Secretary of State thinks fit for the conveyance of the patient to his destination in that country or territory and for his detention in any place or on board any ship or aircraft until his arrival at any specified port or place in any such country or territory.