The Hellmann court also received (Sept 20, 2011) an anonymous letter from an employee at Stefanoni's lab, slamming the way it was run:
http://www.amandaknoxcase.com/anonymous-letter-to-the-court-of-perugia/
The following are the salient points that this anonymous person covered:
- there are no mandatory procedures in the lab, "so as to verify the reliability of the data provided by a laboratory with respect to another. On any kind of analysis, not just for DNA."
- Stefanoni claimed to possess 252 certificates of audit of her lab showing how much it complied with standards. However, those certificates contained recommendations for "prescriptive requirements" and "corrects" before the certificate could be said to be valid.
- Stefanoni's lab always was blind to the chain of possession of samples which arrived, so as to not be able to comment of pre-reception contamination.
- They rarely cataloged or kept the containers in which samples arrived so as to go back and check the presence of contamination in the containers
- Contrary to Stefanoni's claim that this was the first time her work had ever been criticized, the anonymous source says that problems have always been there and that Stefanoni just says want she wants.
- The Scientific police only use protective collection gear for the TV cameras, and wear masks and hoods only when the lawyers are monitoring their collection.
- there is bad disorganization in the storage, refrigeration and handling by the police of exhibits.
- the cleaning of tools and surfaces is done with alcohol, and never checked with a blank control.
- "When the biological result is not as hoped, the amplification of the trace (??[what trace??]) is pushed beyond any reasonable scientific recommendation and will go on until something (??[what??]) is found. May this be the reason why the result is always the presence of mixed unknown subjects?"
- the recycler is always placed under an extractor fan, therefore increasing the probability of contamination.
- Highly specialized instrumentation sometimes does not have a service contract, and when it fails is simply left.
- biological samples are routinely destroyed, so that repeatability is impossible (Note: even Machiavelli confirmed this months ago!)
- Cold cases are routinely "solved" by assigning DNA matches to dead people, or by assigning fingerprint matching to them.
"The icing on the cake … What does the police do? They give awards to the investigators and scientists (who have “solved” in their own way the Kercher case) with accolades and praises! Just Bravi!!"