Whether his department makes use of external consultants to assist it to fulfil its mandate; if not, why not; if so, (a) what kind of work are such consultants hired to carry out, (b) what is the (i) minimum and (ii) maximum duration of such contracts and (c) how much money has been spent to hire such consultants (i) in each of the past three financial years and (ii) during the period 1 April 2010 up to the latest specified date for which information is available?