David Cameron’s disgrace after it emerged he acted as a paid lobbyist for Greensill Capital to get it entry to the federal government’s coronavirus mortgage schemes ought to act as a “deterrent” to different politicians, the pinnacle of a overview into the scandal has stated.

Nigel Boardman defended the investigation he led earlier this yr, saying he had not been “smooth” on ministers by discovering Cameron had not damaged lobbying guidelines nor acted unlawfully, and as an alternative praising the present rules as having “labored nicely”.

Chatting with MPs on the general public administration and constitutional affairs choose committee on Tuesday, Boardman stated there have been constraints on what sanctions may very well be imposed on ministers who break lobbying guidelines or act unethically after they depart their publish.

Tory backbencher Jackie Doyle-Value challenged him, saying “as soon as they’ve left, there isn’t actually any sanction”. She stated:

We are able to all have a look at what David Cameron did when it comes to his lobbying for Greensill. All of us can have our personal views about that. I don’t assume it’s the behaviour I count on of a former prime minister, if I’m being brutally frank. However his reply to that might be nicely, it was nicely throughout the guidelines.

Boardman prompt that, when ministers are appointed, they might signal a “deed of endeavor” which might have some contractual sanctions about their behaviour construct in – like dropping a part of their pension, or an honour. Although he admitted that there are presently few such choices obtainable, and added:

I’d guess that seeing what has occurred in relation to Cameron can be a deterrent to different individuals following down that very same path.

John McDonnell, the previous shadow chancellor, additionally informed Boardman:

You don’t appear to have gone far sufficient on addressing that time about restoring confidence, not simply within the operation of the paperwork, the civil service, however truly that subject about culpability at ministerial stage, in addition to after ministers have resigned as nicely.