If you get the proof. I'm not really sure what it will prove. As that Spycatcher book suggests, the security agencies of England were (and almost certainly still are) well outside of the control and unfriendly towards a democratically elected Labour government.

Cleaning the Augean stables of the the security agencies in England -well - how would you know it was done. you couldn't have a Watergate in England, we are a much too closed and secret society.

I think this should be a separate thread - unless it has something to do with the pleasure some people derive from keeping to keep the 'fighting Irish' fighting.