If you are referring to the radiocarbon testing, the samples were taken all from one area of the Shroud; in violation of pre-agreed-upon protocols.
The funny thing is, when you look at the raw data for the dates assigned to the samples taken, they don't match. Furthermore, the area from which these samples were taken have been shown to be comprised of different material, with a different weave, from the rest of the Shroud.
Homogeneity of the sample is vital in analytic chemistry.
Cheers!
I am pretty sure it was more than radio carbon dating. It is not like they were close and the vote was 3 for and 4 against.