Top of the pops should be My Lord Hyphen-Howe. He said categorically, publically and with no justification whatsoever that Beech's allegations were "credible and true". No police officer of whatever rank should ever say that about any allegations. The veracity of them is to be tested in court and until then nobody knows whether they are true or not. The police may find them "credible" though as I said at the time, I found it hard to give credibility to such widespread and serious allegations against so many prominent people. However, even if the police did find them believable, that should have remained a confidential matter for discussion between them and the CPS. Hyphen-Howe's public pronouncement could well have jeopardised any trial that may have followed and the most senior officer in the country should have known much, much better.
As for Mr Watson, he is a greasy creep of the first order. It is clear he gave his support to Beech for purely political purposes. That support, especially in the light of Beech's convictions and the judge's remarks when sentencing him, suggest that at the very least he should be investigated for attempting to pervert the course of justice.