" Interesting that these adverse reports always seem intended to be for govt eyes only... "

But to quote your goodself on the function of an MP:
"I expect him or her to become more expert than I am in matters politic and I don't necessarily expect them to comply with my wishes."

My question to you is that if the mps are expert in matters politic, then why on earth would you need to know the contents of a report?

Also far more importantly- if negotiating, only a fool displays all the cards to the other players.