Without any knowledge of DNA at all the knife stinks. It's selection is suspect and the testing equally so. What are the odds? Stefanoni's known results, which she suppressed and lied about (is that a clue, do you think?) justified her tossing the knife away as meaningless. We are asked to believe her intuition, on top of the cop's, led her to this non-repeatable, decisive result. And that's without the bra clasp panto. It's no surprise when the big picture reeks that the details should fail to reassure.
Now this is spot on Anglo!
Excusing Stefanoni as possibly making a mistake or ten is not looking deep enough IMO.
Here are additional problems....
Forgetting to run the proper controls maybe be excusable, except that the testing she was attempting was not then and is not now something that she is qualified, equipped or took any reasonably agreed upon special handling procedures that can assure meeting any standard agreed upon in the science.
In addition to those failures she went completely beyond the safety margins of both machine and test kit design of the manufacturer.
And so a debate that is limited to only the controls is giving a sort of legitimacy to her incorrect overall methods...and those methods deserve no such consideration. They are faulty, scientifically wrong conclusions made up with methods unsupported by any real (honest) scientists in the field. The fake science needs to be called out for the sloppy mistake ridden mess that it actual is.
That fact that she can get Biondo and Novelli to go into court and confirm her method is not only suspect but that those methods have already been discounted by a rather large group of letter signing experts as well as two highly qualified, independently court assigned experts...one at least who is a fully trained pathologist...not just a 4 year degree lab tech.
As Anglo so beautifully points out...if it were a simple matter of a mistake or two then why all the suspicious withholding, backpedaling, obfuscation, lies, and returns to the crime scene?
Stefanonis rush to move up, test and review the reference samples is alone enough to discredit her. Real scientists avoid the inherent problem that subconscious confirmation may happen and so the standard is to avoid doing that. Stefanoni OTOH jumps the queue in order to do this exact thing.
Also, it is not correct and not standard for the head of the collection to also be involved in the lab work and interpretation of those findings. Let alone to be involved in the prosecution and police strategy meetings...it reeks of conflict of interest if not outright corruption !
There was a DNA expert here...Tom something...perhaps he is only at IIP? I don't recall now...but he works in this business daily and would have valuable input. Anyone else recall him?