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DNA DAtabases and error

  • Jinie
    Jinie

    DNA DAtabases and error

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    Jinie
    Jinie

    WHEN a defendant’s DNA appears to match DNA found at a crime scene, the probability that this is an unfortunate coincidence can be central to whether the suspect is found guilty. The assumptions used to calculate the likelihood of such a fluke – the “random match probability” has never been independently verified on a large sample of DNA profiles. Governments simply arent allowing independent scientific evaluations of such databases in the US, UK or anywhere else

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    Alex
    Alex

    See whats happening in the UK right know with private lab contaminations. These happen and the only way the system is going to improve is by recognizing that they do and properly addressing them

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    Sujatha
    Sujatha

    In the past year, more than 100 possible inaccuracies in the documentation of DNA profiles on the UK database have been discovered, and a further 1,500 administrative mistakes have been logged on the system. We cant pretend that DNA is foolproof. COntamination, human error and other factors play a role.

    Reply
    Reclaim_Your_DNA
    Reclaim_Your_DNA

    Let us use this case as an example. This young man was falsely accused & tried based on a dna sample taken by the police, which was sent to be processed at a forensic lab (one of 3 in the country) used by the police. Only to later find that the sample had been contaminated & he was totally innocent of the crime..

    Teenager spends three months behind bars after DNA blunder fingers him for rape in city he has never
    http://www.dailymail.co.uk
    Adam Scott, from Truro, Cornwall, was charged with raping a woman in a park in Blackley, Manchester, after a lab mixed his DNA with that of the attacker’s that had been taken from the victim.

    Read more: http://www.dailymail.co.uk/news/article-2114252/Teenager-spends-months-bars-DNA-blunder-fingers-rape-city-visited.html#ixzz2013F3u8O

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    Milton
    Milton

    During criminal trials, DNA evidence is represented by prosecutors as infallible, and jurors generally believe that DNA can\’t be wrong. The problem is that it can – and sometimes it is.

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    Simone
    Simone

    Judges need to take responsibility in their courtrooms to allow evidence critical of DNA evidence. These are not incompatible.

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    Francine
    Francine

    Defendants should have the right to intorduce evidence questioning the veracity of DNA evidence and procedures. You cant allow a presumption of infallibility. DNA is not magic.

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    Francine
    Francine

    Moreover they are using newer techniques that are less accurate, these need to be properly vetted and questioned

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    Filipe
    Filipe

    I understand that they are moving toward on site technologies for rapid sequncing that are not as accurate and can reuqire confirmatory testing. How will they be used?

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    Simon
    Simon

    Mobile technologies by definition are to be used by less sophisticated users, bypassing the lab so police can do the work themselves. Talk about conflict of interest!!!!!!

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    Lana
    Lana

    There is so little oversight no one knows the error rates of these procedures! Codis has never been open to independent study and at least a dozen countries inc the US use it.The labs have been shown to make errors in some of the grossest manners possible. The whole system is designed to allow a police state to cloak itself in “science”

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    Alexis
    Alexis

    Every technology has error as a matter of course plus the human error in operating it. This must always be factored into the evaluation.

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    Robert
    Robert

    Who checks any of this equipment, its just the word of the government.

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    RobertZemo
    RobertZemo

    Say, you got a nice forum post.Thanks Again. Keep writing. http://jtf7f86r5df68.tumblr.com/ – Hunstad

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