The proof does not belong to the Trust or to me so I can't answer that particular question. I have answered everything else, haven't I?
I asked the following and you answered none of them. Perhaps you missed them? None of these questions require you to have the proof to hand or have ownership of it. You've seen it, you know who supplied it to the Trust, you are comfortable there are no legal issues as the owners have not denied it so what's the problem? So I'll let you have another go.....
So while you don't posess the "evidence" having seen it personally you can at least answer some further questions regarding it. What actually physically is the evidence and what does it exactly show? Who obtained this information and how did they obtain it? Why is the person in possession of this information seemingly only willing to share it with The Trust Board and not the supporters? How do you know the person supplying the evidence has given you the COMPLETE picture.
In fact DM me the persons details and I'll ask them for a copy myself. Or you can contact them and ask them to release the information.