Regarding allegations that negative controls were not in place, not true:
"As for the necessity of reproducing an analysis, particularly in the case of a very small amount of DNA, in order for the result to be considered as reliable, Dr. Stefanoni stated that in the event that the quantity of genetic material available is extremely small, the analysis is performed nevertheless and the result is evaluated. She added that "every analysis that we do is done only once, even if we have a salivary swab containing a very great deal of DNA with respect to the traces..." She added further that, "if an analysis is performed following all the parameters of reliability and proper laboratory procedure, with the due positive and negative controls and the due precautions employed when wearing single-use gloves, everything which is indicated as proper laboratory procedure, then I can confidently obtain a result, even with a very small quantity of DNA. I can therefore use that DNA in a single analysis without needing, even if I had desired it, to repeat that analysis. And that analysis is absolutely valid," concluded Dr. Stefanoni on this point; "There is no reason to cast doubt...as long as the data is absolutely readable and interpretable" (page 25)." (pg 218)
And later:
Nor, as has already been said, is it possible to hypothesise a contamination in the laboratory since, as was declared by Dr. Stefanoni, during the course of all the analyses, no anomaly occurred, and the fact that all due controls, precautions and procedures of good laboratory practice were complied with necessarily leads us to rule out the possibility of such contamination in the laboratory. (pg 227)
And again:
"She also explained that in performing the various analyses on the biological traces in question, there was no anomaly found which could have caused such a [231] contamination, and she gave evidence of the presence of a whole series of checks [controls], precautions and procedures, intended so as to eliminate this risk." (pg 219)
And again:
She added that the databases are updated by people who work in the field of genetics, and in accordance with the existing controls in that regard. (pg 232)
Ref: Motivation Report