Bill it is unnecessary for you to hunt down that article as everyone here knows that the smaller the amount of material available for testing the greater the need for stricter protocols for collecting, transporting, storing and testing. Special labs have been set up for LCN/touch DNA testing with positive pressure hoods to keep out environmental contamination.
If anybody doubts that LCN is easier to transfer they are not worth arguing with.
Do you think the copy below is neutral?
Amanda Knox’s fate may turn on a DNA speck found on a plain old kitchen knife. In the first day of her retrial in Florence, Italy, the news was unrelentingly dreary for the defense, leading me to dub Judge Alessandro Nencini “Dr. No.” He said yes to DNA testing on the knife but wasn’t interested in DNA testing on semen most likely belonging to convicted murderer Rudy Guede on a pillow found under the victim’s body. In fact, Nencini denied 15 of 17 defense requests. Worst of all, he wasn’t interested in summoning Rudy to finally explain why everything in the murder room points only to him.
I fear we’ll see the rejected kitchen knife, wrapped with a bright red ribbon, brought back to court under melodramatic armed guard. Too large to fit victim Meredith Kercher’s wounds, it doesn’t match a bloody imprint on the victim’s bed. In the last trial, a speck the police claimed was the victim’s DNA turned out to be starch. Independent experts won’t test the knife this time; the judge handed that task off to the carabinieri ris. (Update: Filippo Barni and Andrea Berti). I have my fingers crossed for fairness.
Is it true that the DNA turned out to be starch? I think C&V said the DNA found wasn't done with proper protocols and therefore couldn't be considered. Perhaps I have forgotten that they said the substance was starch. Is the "new" substance they found also starch?
The article I read did not so much make mention of, "the smaller the amount of material available," as it did the increased sensitivity of testing.
It went at great length to make the point that the greater the sensitivity, they more important that anti-contamination protocols were followed, and that the protocols needed to be stricter and demonstrably so.
I am not an expert on this. To me it is a little counter-intuitive to say that the anti-contamination protocols need to be more strict, only in the sense that this seem to imply that the older way of doing things is not very reliable!
But that's just me and it may be my misunderstanding of a topic I'd rather not read about. All this DNA technical stuff makes me want to scream....
... and the trouble with that knife, now in Oct 2013, is actually one of chain of possession, and verifiable chain of custody. If it shows up now with a bright bow on it, and a big hunk of ANYBODY'S DNA that Stefanoni didn't find, then the fix really is in.
Stefanoni's work on the first sweep of the cottage is basically meat and potatoes forensic work. Her work on the knife and the bra-clasp is technical stuff that I am gathering is well above her pay-grade.
If now they've miraculously discovered DNA on the knife that really is meat and potatoes obvious forensics.... it's been 6 years that this knife has been in the possession of somebody!
It's a double edged sword.... think about it. My view is that Stefanoni wrote reports about the knife and the bra-clasp that would allow the prosecution to go either way on them... and her "findings" could support either guilt or innocence, thus letting her off the hook.
It's quite the trick when you think about it. No wonder she fought tooth and nail not to release the EDFs, if that's what you call them.