First of all, the old legal adage in the UK that a person is innocent until proven guilty counts. Also the keenness of Rennard's friends to defend him is in one respect, commendable. I know that difficult scenario, and being prepared to do so, believing that the accused is innocent in the face of public opinion is brave. However, that is no excuse for obnoxious and patronising attitudes, such as we have seen from Lord Carlile, and indeed Michael White's recent piece in The Guardian (although with Michael White, he is not, as far as I am aware, defending Lord Renard, he has been guilty of diminishing the accusations made), nor is it to be used as an oppurtunity to attack the person or persons making the accusations!
Lord Rennard faces not only serious accusations, but initial findings have shown that, while proof is lacking, he may well be guilty. It would be better therefore if, instead of making legal threats, he makes an apology that is acceptable to all concerned. That said, I don't think it is as simple as that, and events may have moved swift to the point where that may be extremely difficult