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    9lennon's Avatar
    9lennon Posts: 3, Reputation: 1
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    #1

    Jun 24, 2012, 06:35 AM
    Ask and get answers to finger prints
    How long will oils remain on paper to still be detectable
    Fr_Chuck's Avatar
    Fr_Chuck Posts: 81,301, Reputation: 7692
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    #2

    Jun 24, 2012, 06:39 AM
    What type of oil, what type of paper, in what environment is it keep
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    9lennon Posts: 3, Reputation: 1
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    #3

    Jun 24, 2012, 06:45 AM
    Body oil,plain white paper,indoor controlled environment
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    #4

    Jun 24, 2012, 06:51 AM
    Quote Originally Posted by Fr_Chuck View Post
    what type of oil, what type of paper, in what enviornment is it keep
    Body,plain white ,indoors controlled
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    Fr_Chuck Posts: 81,301, Reputation: 7692
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    #5

    Jun 24, 2012, 07:12 AM
    Anthropologists in Italy claim they have pieced together Leonardo da Vinci's finger prints from papers he handled. You can not get them by "dusting" but would use various chemical methods to bring them up. Often it is not really oil on the skin as much as salts, fatty acids, proteins and amino acid that transmits the print to paper

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