(a) What investigations have been conducted into motor vehicle testing stations (i) in the (aa) 2012-13, (bb) 2013-14 and (cc) 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 results of each specified investigations, (e) what were the specified persons charged in each case with and (f) when were the specified persons charged in each case?