All sample and subsample data including weight, chemical analysis, and radiocarbon dating must be preserved and made public.
The actual provenance of these threads is uncertain, as Gonella was not authorized to take or retain genuine shroud material, but Gonella told Rogers that he excised the threads from the center of the radiocarbon sample.
The statistical analyses, supported by the foreign material found by the laboratories, show the necessity of a new radiocarbon dating to compute a new reliable interval.
Until a better, more accurate method of testing and understanding of contamination are revealed.
In the same issue of Nature that the radiocarbon dating results for the Shroud of Turin were published, Phillips hypothesized that neutron radiation could have altered the reported dates.
To make matters worse, Mssrs.
Harry Gove, director of Rochester's laboratory one of the four not selected by the Vatican , argued in an open letter published in that discarding the blind-test method would expose the results — whatever they may be — to suspicion of unreliability.
Aspects of the 1988 test continue to be debated.