(1)With reference to his reply to question 3447 on 13 October 2015, (a) what is the current status of the investigation and (b) what are the charges contained in the docket;
(2) whether any suspects have been arrested to date; if not, why not; if so, what are the relevant details;
(3) whether any (a) suspects or (b) witnesses have been interviewed; if not, why not in each case; if so, (i) when and (ii) what are the further relevant details in each case;
(4) when is the investigation anticipated to be finalised?