Will Labour convict me of thought crime?

I got an email this week, from a chap called Harry, which began as follows: ‘I am writing to inform you that I will be carrying out the investigation on behalf of the Labour party into the circumstances that resulted in your suspension from the party.’ Harry went on to say that he will be ‘conducting interviews with witnesses’ and added: ‘I will also need a time when you are available for an interview.’ This last presumably as an afterthought: I suppose we need to hear from him. Anyway, at this interview (to be conducted in London, natch) I am allowed to bring along a ‘silent witness’ —someone who is not permitted to intervene on my behalf but can sit beside me with a consolatory expression on their face and perhaps hold my hand. Thinking about this later, I wondered if engaging a mime artiste might be the way forward. He could do his sad ‘I can’t get over this wall’ act as the cross-examination reached its furious crescendo and somewhere, offstage, a smirking OGPU thug loaded the bullets into a pistol.