some of the things you mention i reguard as evidence,though not proof.the words of witnesses are weighed in court.i suspect many a verdict has been reached on less evidence

Yes, and there have been many miscarriages of justice. Stop saying proof. That gets us nowhere. Right, I crash my car and you are a witness. The court will ascertain whether you are independent or not (that you either are not my relative or that you don't bear me a grudge) and will attempt to get some corroboration. A second independent witness is twenty times better than one. The witness evidence will be tested for consistency against my evidence. You will likely be assessed for your sufficient soundness of mind to be a fit and proper witness. Now the sort of witness "evidence" you're talking about cannot be subjected to this kind of scrutiny. It's like my telling you that I saw a rare bird flying over my house, and my expecting you to accept that as evidence that the bird was really there. Now before you send off your exciting record to the bird-watching club just think of the awkward questions you'd like to ask me first. How expert are you? Did anyone else see it? Describe exactly its appearance and flight and any other details. Have you got a photo (that you can prove isn't a fake)? Let me see your binoculars! Your religion witnesses would fall at the first hurdle, subjected to this, every single time. You seem to want the bar set very low for your kind of "witnesses."