Curious why the advisor would intentionally make a test potentially invalid. Looks like he was covering up for soemthing he knew:
“Instead, the scientific adviser to the Arch Diocese of Turin, Luigi Gonnella, decided to violate the protocol and allowed only one sample to be cut from an outside corner where it had been handled hundreds of times over the centuries as it was held up for public viewing.”
(1) he didn’t realize it had been rewoven—it was rewoven by those experts who can repair a tear such that it’s invisible; (2) he didn’t realize that smoke residue could throw off C-14 results because physicists didn’t realize it until some Russian scientist did experiments to show this—stimluated by the Shroud issue
(3) he wanted the sample to be taken from a marginal area rather than damage the Shroud more than absolutely necessary. No one was enthusiastic about smipping off part of the Shroud.