Sean, Peter,
If you are concerned by the use of the word criminal then you haven't been following the debate or you are rather more precious than I ever thought Sean, at least, was on my several meetings with him. The allegation here is that IST has made public, with a view to a sale, documents that he claims to be historic artefacts when, in fact they are more recent. He has also, it is said, deliberately misled people as to the provenance of these documents. If it is true then someone must have created those documents, intending to pass them off as something they are not and someone has lied about their creation, chain of custody and provenance. If any of those allegations are true then it is without doubt that a criminal act has occurred. Hiding from that word does not change the fact.
I do agree with Peter about David's approach here. It seems to me that he has, by asking very specific questions, given Phil a chance to explain his involvement and clarify what has gone on here. Since Phil did choose to bring this matter back to GCA it seems sad in many ways that he has chosen not to respond to those questions.