• Question: How do they find finger-prints?

    Asked by Cadhla to Gabriel, Sarah, Sophie on 16 Mar 2018.
    • Photo: Gabriel Balaban

      Gabriel Balaban answered on 16 Mar 2018:

      Finger prints can be detected by dark powders, lasers or special photographs. They are usually made by the sweat and oil on your fingers being left behind on something.

      Check out this website which explains everything in detail

      https://science.howstuffworks.com/fingerprinting1.htm

    • Photo: Sophie Williams

      Sophie Williams answered on 16 Mar 2018:

      i am not entirely sure but i think they put dust on a surface and the fingerprint can be seen because the powder sticks to the oil in the fingerprint

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