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Okay, first of all 3035. This goes back to your suggestion that Raffaele's DNA on the bra clasp could have been transferred there by dust. I suppose your chain of events is:
- Raffaele tries to force door and DNA from his hands or clothing sticks to door, transported on dust.
- At some point the dust floats around or gets kicked around and ends up on the bra clasp
You linked this summary of a scientific article to support your argument:
http://www.newscientist.com/article/mg19826584.200-telltale-dna-sucked-out-of-household-dust.html
I pointed out that a reading of the New Scientist summary you linked us to indicates that "
With further research it might be possible to find ways of recreating someone's profile or even working out how recently they'd visited a crime scene from the decay of their DNA."
I found some other links which seemed to support the idea that DNA through dust testing was not yet a standard forensic technique nor practise (if you want, I'll find them again).
You now say "
Your argument that this technique is in its initial stages is wrong; people have been studying touch DNA for over ten years."
I think that you are criticising inappropriately my observation of the article's text. Of course human DNA has been observed in dust, and that has been the object of academic study. However, when you take into account the date of this article (from 2008) and the date of Meredith's murder (2007) it seems to me that as a forensic analysis technique at that time, that you wouldn't detect Raffaele's DNA on the bra clasp (which was detected with 2007 DNA testing techniques) through a dust based transfer.
You said in the earlier discussion: "
With respect to DNA and dust, a little history is in order. I first brought up the DNA-in-dust paper to show that Stefanoni was wrong in her assertion that skin cells do not contain DNA."
If Stefanoni asserted that skin cells don't contain DNA (citation? exactly what did she say?), she was surely referring this same issue: that the positive for RS's DNA, obtained through forensic testing carried out in this case (or in any case in Italy and most or all parts of the world at that time and perhaps even now), precluded the transfer of Raffaele's DNA through dust.