Forensic Science: Fundamentals & Investigations, Chapter 6 1 What Are Fingerprints? o All fingers, toes, feet, and palms are covered in small ridges • Ridges help us grip objects o Ridges are arranged in connected units called dermal, or friction, ridges • Complicated pattern of “hills” (ridges) and “valleys” (furrows) o Fingers accumulate natural secretions and dirt o Fingers leave create prints on objects we touch
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What Are Fingerprints? - wardlhs.weebly.comwardlhs.weebly.com/uploads/1/3/2/9/13292041/4.17.17_fs.pdf · Formation of Fingerprints o Skin consists of: • Inner layer— dermis •
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