Originally posted by Natalie Severn
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Because it says so in the judgment.
Well it sounds a very odd way to go about things.One thing you can not deny is that Valerie picked out Michael Clark,in her first try,and she wrong.
If it wasnt nearly bare of DNA why on earth did they have to use Low Copy Number DNA testing on it and then throw it away saying there was nothing left on it to test? Why LCN ? BTW where is the other half off the section that was cut from the crotch---any idea?
All the DNA was washed from the sample to test so there was no need to keep it any long - although they may well have done so.
The first half was used in the first set of test at the request of Woffinden on behalf of the Hanratty family, and the second half in the LCN tests.
Even though there was a broken vial inside it,separated from its rubber stopper that could have contained a wash from semen stained trousers?Apparently there were other items from Hanratty in that drawer too.
Not exactly comparable at all.DNA from bones does last.DNA from cloth can disappear in a matter of weeks.
http://answers.yahoo.com/question/in...7124555AAFg8aZ
http://answers.yahoo.com/question/in...7124555AAFg8aZ
From http://www.theforensicinstitute.com/...tement%202.pdf
Dr Whitaker’s proffered explanation was that the most rational explanation for such failure was the degradation of the frozen DNA. This is simply scientifically unacceptable. DNA is an inherently stable molecule and requires something to destroy or degrade it; examples are action by light, cellular enzymes, or bacteria.
DNA has been extracted from mummies (albeit with mixed success), and profiles are routinely obtained in Medical Genetics from blood spots on card stored at room temperature that are at least 40 years old.
which in your Yahoo link is mentioned here..."So most of the DNA from a human body would degrade pretty quickly, sitting at room temperature, with all sorts of impurities around to help break it down."
Moreover nobody knows who handled that cloth. It was in a brown envelope whose edges had come apart and it was left abandoned for 31 years in a dusty old drawer.
The envelope it was found in was falling apart.
KR,
Vic.
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