Comments on: The Heilbronn DNA Mixup http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/ Mostly Biology and Bioinformatics Wed, 01 Apr 2009 05:44:04 +0000 http://wordpress.org/?v=2.9 hourly 1 By: Chad’s News - A Master Criminal http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-57 Chad’s News - A Master Criminal Wed, 01 Apr 2009 05:44:04 +0000 http://mwinkelmann.com/?p=88#comment-57 [...] #1: http://mwinkelmann.com/…(via [...] [...] #1: http://mwinkelmann.com/…(via [...]

]]> By: Science Etcetera, Marsday 20090331 | ideonexus.com http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-55 Science Etcetera, Marsday 20090331 | ideonexus.com Tue, 31 Mar 2009 05:01:57 +0000 http://mwinkelmann.com/?p=88#comment-55 [...] DNA traces of an unknown eastern-European woman at 17 crime scenes the result of cotton-swab contamination. [...] [...] DNA traces of an unknown eastern-European woman at 17 crime scenes the result of cotton-swab contamination. [...]

]]> By: noi desfăşurăm activitatea specifică, nu gândim « Ştefan’s rant http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-49 noi desfăşurăm activitatea specifică, nu gândim « Ştefan’s rant Fri, 27 Mar 2009 20:49:44 +0000 http://mwinkelmann.com/?p=88#comment-49 [...] s-o fi mirat poate că Bavaria care e în centrul zonei de actiune a scăpat neatinsă însă le-a picat fisa abia când au făcut două teste pe aceeaşi probă şi doar la una a apărul ADN-ul misterios. [...] [...] s-o fi mirat poate că Bavaria care e în centrul zonei de actiune a scăpat neatinsă însă le-a picat fisa abia când au făcut două teste pe aceeaşi probă şi doar la una a apărul ADN-ul misterios. [...]

]]> By: retrogaming http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-48 retrogaming Fri, 27 Mar 2009 16:29:47 +0000 http://mwinkelmann.com/?p=88#comment-48 I kind of expected someone would mention CSI sooner or later. But I have never even watched it! I only heard of it. What made me think it's "accurate and reliable" is that in a lot of real-life trials, it seems to be used as the most irrefutable proof of all, the one that tells who the guilty party is as clearly as he had been caught on camera. I kind of expected someone would mention CSI sooner or later. But I have never even watched it! I only heard of it. What made me think it’s “accurate and reliable” is that in a lot of real-life trials, it seems to be used as the most irrefutable proof of all, the one that tells who the guilty party is as clearly as he had been caught on camera.

]]> By: Zeeko http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-46 Zeeko Fri, 27 Mar 2009 14:37:59 +0000 http://mwinkelmann.com/?p=88#comment-46 This problem is not surprising. A similar problem involving the tubes used during the testing process occurred in the US several years back. Perhaps scarier is the fact that many labs in the US test samples from the suspect, victim, and crime scene at the same time, in the same place. So if a contamination occurs between the suspect's sample and the evidence then the suspect pretty much own the crime whether they were involved or not. The classic undetectable false positive! Zeek This problem is not surprising. A similar problem involving the tubes used during the testing process occurred in the US several years back. Perhaps scarier is the fact that many labs in the US test samples from the suspect, victim, and crime scene at the same time, in the same place. So if a contamination occurs between the suspect’s sample and the evidence then the suspect pretty much own the crime whether they were involved or not. The classic undetectable false positive!

Zeek

]]> By: john la berge http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-45 john la berge Fri, 27 Mar 2009 14:18:21 +0000 http://mwinkelmann.com/?p=88#comment-45 ne variatuer ne variatuer

]]> By: john la berge http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-44 john la berge Fri, 27 Mar 2009 14:17:29 +0000 http://mwinkelmann.com/?p=88#comment-44 <a href="#comment-27" rel="nofollow">@CoolKev </a> thank you for that observation now i wish to add one of my own. looking back on the steven kisko, his jailing, release and death directly related to his experiences at the hands of prisoners and guards alike i cannot avoid wondering how the totally inept police imspectors who chose to vilify a nearly mentally incompetent in favour of a proven child killer are squirming in thier comfortably paddedd officers chairs. ewqually amusing if hat is a term applicable to thier despicable action would be a opportunity to be the fly on the wall of the counties crown prosecutors, memebrs of the judiciary who tried the case and the public who se lies ruined the family of a truly innocent man. it is however most unlikely that any of the above will ever even flinch at the prospect of thier ignorance of being and remaining ignorant of the true conditin of the evidence produced in that and other prior or subsequent trials for the alleged exposures and murder should be disputed for what it was, totally bogus. last item this will really put a spin on the genetics abd geneology fields won't it? @CoolKev
thank you for that observation now i wish to add one of my own. looking back on the steven kisko, his jailing, release and death directly related to his experiences at the hands of prisoners and guards alike i cannot avoid wondering how the totally inept police imspectors who chose to vilify a nearly mentally incompetent in favour of a proven child killer are squirming in thier comfortably paddedd officers chairs. ewqually amusing if hat is a term applicable to thier despicable action would be a opportunity to be the fly on the wall of the counties crown prosecutors, memebrs of the judiciary who tried the case and the public who se lies ruined the family of a truly innocent man.
it is however most unlikely that any of the above will ever even flinch at the prospect of thier ignorance of being and remaining ignorant of the true conditin of the evidence produced in that and other prior or subsequent trials for the alleged exposures and murder should be disputed for what it was, totally bogus.
last item this will really put a spin on the genetics abd geneology fields won’t it?

]]> By: Kiz http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-43 Kiz Fri, 27 Mar 2009 13:19:00 +0000 http://mwinkelmann.com/?p=88#comment-43 Seems like forensics needs somrthing like a lights test which is used to check that all the alarm lights are working correctly. Seems like forensics needs somrthing like a lights test which is used to check that all the alarm lights are working correctly.

]]> By: J.L.Lee http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-42 J.L.Lee Fri, 27 Mar 2009 11:57:09 +0000 http://mwinkelmann.com/?p=88#comment-42 It's good to see the "Keystone Cops" are alive and well in Europe! It’s good to see the “Keystone Cops” are alive and well in Europe!

]]> By: Matt http://mwinkelmann.com/2009/03/the-heilbronn-dna-mixup/comment-page-1/#comment-41 Matt Fri, 27 Mar 2009 09:55:36 +0000 http://mwinkelmann.com/?p=88#comment-41 <blockquote cite="#commentbody-39"> <strong><a href="#comment-39" rel="nofollow">Mike</a> :</strong> I wonder how many trials have to be retried now? </blockquote> None, probably. DNA-tests are fundamentally sound. The DNA was actually there. It's well known that a crime scene can be contaminated, by DNA that was there before the crime for example. In some countries it's not even possible to convict someone by DNA evidence alone. All in all, DNA is the greatest progress in forensics since the fingerprint, reducing both false positives as well as false negatives. Just think of the hundreds of sometimes decades-old cases that were either solved or where a wrongfully convicted was exculpated by DNA evidence.

Mike :
I wonder how many trials have to be retried now?

None, probably. DNA-tests are fundamentally sound. The DNA was actually there. It’s well known that a crime scene can be contaminated, by DNA that was there before the crime for example. In some countries it’s not even possible to convict someone by DNA evidence alone.

All in all, DNA is the greatest progress in forensics since the fingerprint, reducing both false positives as well as false negatives. Just think of the hundreds of sometimes decades-old cases that were either solved or where a wrongfully convicted was exculpated by DNA evidence.

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