Italian medical professionals did. I believe Calvani and Meloni? Are Italian professionals not as good as English ones? I thought we had moved on from that train of thought. GDS probably did argue the case for a later time. GDS is an easy target for disdain - that doesn't mean he is wrong though. He has since gone on record saying something like a million percent Bamber is innocent. He may be a rogue but I quite like him.
Nothing to do with where professionals originate from or place of residence but the quality of evidence and the reliability of those involved with it!
GDS is a bogus lawyer and convicted fraudster currently a guest at HMP. First we have to put aside justifiable reservations about his reliability given his background. Second we have to ask ourselves why two eminent British pathologists overlooked what the Italian pathologists are claiming decades later!
GDS saying this, that or the other is meaningless. He is no more qualified to offer up opinion than you or I.
I don't know why you struggle to identify who is reliable and who isn't. You seem to write off prof Knight for the defence and instead rely on 'Bill' and GDS and those he has probably duped.