(1) Whether his department has investigated every case of alleged irregular expenditure in the (a) 2009-10, (b) 2010-11 and (c) 2011-12 financial years; if not, why not; if so, (2) whether any disciplinary action has been taken against those who were found to have flouted the requirements of the Public Finance Management Act, Act 1 of 1999; if not, why not, in each case; if so, what (a) steps, in each case and (b) are the relevant details, in each case?