With reference to her reply to question 263 on 28 April 2015, (a) which investigations have been concluded, (b) which entities conducted the investigations, (c) on which date was each investigation concluded, (d) what are the recommendations in each case, (e) what are the names of the implicated officials in each case, (f) what action has been taken against the implicated officials in each case and (g) which recommendations have been implemented in each case?