Hey all, sorry i missed yesterday. I did some research on Fingerprint analysis. Turns out that our fingerprints develop after 4 months in the womb, and stay that way till death. Every person has a different, permanent pattern, which makes them ideal for identification purposes. The raised skin that makes up the fingerprints is known as 'friction ridge skin' and is found only on the hands and bottoms of the feet. This skin is the only skin on the human body that does not grow hair. These ridges do not go unbroken on our fingertips, they actually have minor characteristics known as minutiae. These ridge characteristics can be defined as:
1: Ridge Ending: A ridge that ends abruptly
2: Bifurcation: A single ridge that divides into two ridges.
3: Lake: A single ridge that bifurcates and then reunites to continue as a single ridge
4: Island: A ridge that commences, travels a short distance, and then ends.
5: Dot: An independent ridge with appox. same length and width.
6: Spur: A bifurcation with a short ridge rather than a long one.
7: Bridge: A short ridge that runs between to parallel ridges (connecting them).
I found this info here: http://www.crimtrac.gov.au/systems___projects_fingerprint_analysis___the_basics.html
1 comment:
Very Nice! The investigator at Peoria County certainly thought this was "still" one of the very best methods used. Solid understanding of the topic. Did it mention anything about "odd" print characteristics?
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