I am tending to agree with your here AOG. If we wait until the Great and Good have managed to get their act together and finish with this Enquiry, some of the guilty may very well be dead. Some of them already are.
Of course, the Tory MP/MPs may have already been interviewed by the Police but those investigations may have been stifled by MI5 again, as has happened in the past.
The goings on at the Elm Guest House first came to light many years ago and were "investigated" but yet again, I smell the dead hand of the Establishment in all this. Maybe we need another Labour MP to stand up in the Commons and name some names under Parliamentary privilege again, to kick start some new investigations. Something has to get past the logjam.