One thing it does write that I would disagree with is in its summary of 'unlawful information gathering' it puts 'hiring private investigators' alongside phone hacking, bugging homes/cars and blagging records.
I haven’t looked into it in depth, but I don’t think “blagging” as frequently talked about by some of the witnesses is illegal, at least not in all contexts. Otherwise mystery shopping exercises, or consumer reporters pretending to be a genuine customer to covertly film or record a scammer would be illegal, and they are not. Investigative journalists also create cover stories to build relationships and gather information and there’s never been any suggestion it is illegal.
it’s a heavily regulated area for the public authorities like the police, who need to go through a documented process to have someone be able to pretend they are someone else in order to gather information, but for the general public there are no such rules.
Also, Mandelson - words fail me. As you say, thinking he can curtail justified press coverage of him given what’s just been discovered about his illegal activities while in high public office.