With reference to the 2013-14 report of the Auditor-General which notes that his department lost about R34 billion through irregular expenditure, (a) what measures have been taken to ensure that this wasteful expenditure does not happen again and (b) how many officials have been criminally charged and prosecuted in the past five years in terms of section 86 of the Public Finance Management Act, Act 1 of 1999, for this wasteful expenditure?