Whether her department is conducting an investigation into the supply of transport aircraft by commercial companies, including a certain company (name furnished), in relation to the deployment of the SA National Defence Force in the Central African Republic; if not, why not; if so, (a) what is the (i) name and (ii) rank of the officer conducting the investigation, (b) what is the scope of the investigation and (c) when (i) did the investigation begin and (ii) will the investigation be completed?