(a) What investigations have been conducted into motor vehicle testing stations in the (i) 2012-13, (ii) 2013-14 and (iii) 2014-15 financial years, (b) who conducted the specified investigations, (c) what were the conclusions in respect of each investigation, (d) how many persons have been charged in respect of each month in each province as a result of each specified investigation, (e) what were the specified persons charged in each case with and (f) when were the specified persons charged in each case?