Labour MP Sarah Champion tells BBC Radio 4’s Today programme she believes the PM did not know about Lord Mandelson’s failure to pass security vetting checks before he found out last week.
Ms Champion told the programme: “To be quite honest, I would much rather all of this have been done behind closed doors in a quick inquiry.
“I don’t like the fact that a very senior civil servant has basically taken the brunt for this. This is an HR and a procedural issue that I really think should have been done quietly, not in the public domain.
“I would say absolutely publish the results, but with any sort of HR personnel issue, this isn’t the normal procedure.
“From my point of view, the two things that I’m most concerned about are the security risks that Lord Mandelson may or may not have put us under and our reputation accordingly, but also it’s about our relationship with the civil servants going forward.
“Ministers are incredibly dependent on them and I’m worried that that level of trust might have been broken.”