(a)What number of legal cases were initiated against (i) him and (ii) his department in each year since 1 April 2013 by applicants for (aa) asylum and (bb) refugee status, (b) what number of the specified cases did his department (i) win, (ii) lose and/or (iii) receive a cost order against them in each case and (c) what total amount did his department incur in legal expenses (i) to defend the specified cases and (ii) in respect of cost orders granted against them?