Forensic lab's new high-tech device a game changer in fight against crime

Discussion in 'TODAY! on Websleuths' started by FreshEyes, May 19, 2019.

  1. FreshEyes

    FreshEyes Well-Known Member

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  2. katydid23

    katydid23 Verified Juanette

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    The Cumberland County forensic lab's new Vacuum Metal Deposition can reveal latent fingerprints on materials, which used to be impossible to lift.

    The machine deposits a thin layer of gold and zinc on the items under high-vacuum pressure. It can be used on paper money, plastic and fabric, and doesn't destroy DNA.
     
  3. Gardenista

    Gardenista Well-Known Member

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    Glad you posted this is super cool. It also reminded me about something I meant to post the other day.

    FBI Scientists Studying Wet Vacuum for DNA on Select Surfaces

    The wet-vacuum method of collecting DNA from challenging surfaces, which has cracked a growing number of cold cases in some states, is being tested by scientists at the Federal Bureau of Investigation laboratory, according to a presentation two weeks ago at the Southern Association of Forensic Scientists annual meeting.

    A whopping 47 times more DNA was pulled off the automotive carpet by the wet-vac system, as opposed to swabbing, according to the results. Twenty-eight times the genetic material was taken off the pine, seven times more was collected from the plywood, and five times more from the pressure-treated wood, according to a copy of the presentation.

    More at the link.
     
  4. faeriegyrl

    faeriegyrl New Member

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    I saw a demonstration of the wet vacuum system at CrimeCon last year. Very interesting technology.
     

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