(a) What number of (i) financial, (ii) forensic and/or (iii) other investigations that were commissioned by her department have been completed since 1 April 2013 and (b) in each case, what are the relevant details on the (i) investigation including a synopsis of the facts and findings of each case, (ii) persons or third parties responsible for each investigation, (iii) total cost to date of each investigation and (iv) appropriate steps taken against officials and third parties implicated of wrongdoing in the findings of the investigations?