I don't see how. All that is completely IC information.
Oops, I meant to make that more absolute; is it metagaming to claim scribe note evidence as undeniable proof? That is, if the attacker isn't ID'd, but is game mechanically obvious, would our characters take it as obvious as well?
I understand that this will ultimately fall to how the characters play it, but is it right to get fed up (IC) when someone tries to deny this kind of proof? Or should we (potentially) accept the RP description?
I'm not sure what you mean here. Are you asking whether it is metagaming to believe the messages obtained through a torture report without question?
Yup.
