Mr. David Moloney:

The key report on issues in this area is the report of the independent panel on strengthening Civil Service accountability and performance, the Rafter report, which goes back to May 2014. That report looked at the interaction between Ministers and Secretaries General, the operation of the different roles and how accountability and performance could be strengthened. It looked at a wide variety of relevant issues that would come up in this context. As far as I know, the Carltona principle itself has not come under particular focus.