(1) With reference to his letter to the Speaker of the National Assembly dated 24 February 2015 (details furnished), what specific function(s) were the members of the SA National Defence Force (SANDF) performing between 10 and 13 February 2015 during the opening of Parliament on the occasion of his State of the Nation Address on 12 February 2015; (2) what specified duties did the SANDF members undertake in their assistance of the SA Police Service members who were on duty between 10 and 13 February 2015?