FSC239Y5 Lecture Notes - Lecture 12: Automated Fingerprint Identification, Anatomical Terms Of Location, Dermis
Document Summary
Sept. 15 & 17, 2015: fingerprint 1 & 2. An impression left on a surface by the ridges, called friction ridges, of the skin on the fingers. Underside of the foot also has the same type of skin. In other materials, fingerprint secretions like sweat, dirt, blood, paint, etc, left at the crime. In ink and on live scan, as in rolled ten prints taken when an offender is booked scene - commonly called latent prints or latents. Ridgeology is defined as the study of the uniqueness of friction ridge structures and their use for personal identification. Volar pad development: volar pads start forming on the palm first at about 6 weeks. 12 weeks to 17 weeks of fetal development - friction ridges start to develop in basal layer, and. In 8 weeks fingers separate volar pads regress. Fingers, palms, and soles have friction ridge skin. Patterns of ridges are hills, and furrows are valleys.
