Evidence vs. listed witnesses/expert witnesses?

You need to consult a lawyer who knows more about the situation and the law where you are. The evidence law topic you might consider discussing with that lawyer is judicial notice, a process by which a judge will accept uncontroversial facts and self-authenticating doents into evidence without a witness. HOWEVER, I don't know if that helps you in your situation or not. It's a very specific procedural question that must be answered by someone who knows courtroom procedure where this case is taking place.