Sunday, November 13, 2011

Forensic Science Project Part I: Fingerprints

Basic shapes and patterns of fingerprints
 Basic Shapes and Patterns of Fingerprints
                                                                                          This is a image of my own fingerprints.


Fingerprints in my opinion are the main way of identifying a person and fingerprints have different shaped ridges. Fingerprints are unique that there is only a 64 billion chance that anyone’s fingerprint will match up to another fingerprint. Fingerprints are made of whorls, ridges, loops, arches, tented arches and central pocket loops. It is important that forensic scientist students know the difference between multiple of fingerprints.

A plain arch is a fingerprint that has ridges flowing from one side of the impression of the fingerprint and flows out the other end of the fingerprint impression. There is a 5% chance of plain arches collected at any crime scene. I think plain arches does not have a creative design it  is so plain. I guess it defines the plain part of plain arches. The fingerprint almost looks like a plain line except for the urge of an arch on the top of the fingertip. Tented arches have an angle or up thrust, that has a shape of a tent in the middle of the fingerprint. Tented arches also have a 5% chance of being collected at a crime scene. A tented arch has many of biblical stories that go with the tented arch and has greater meaning. This fingerprint has a little more creation in the fingerprint it is shaped kind as if a tent as ridges go upward.

Forensic scientist students need to know loops are 60-70 % of fingerprints that are collected at a crime scene. The Ulnar loop has a side loop with the shape of a ulna bone. My personal opinion is the Ulnar loop fingerprint has a creative design to it. The design looks like it has loop door that you can go to another world in. The Radial loop to me looks like a flat rainbow that has no color to it. The Radial loop is 60 to 70% more likely to be collected at a crime scene. The Radial Loops are named after the radius bone in our body. A radius bone is in the forearm, which connects the hand on the same side as the thumb.



There are three types of whorls in fingerprint patterns. A Plain Whorl has a unique design like the hypnotizing circle that goes continuously around in circles. Whorls are 25-35% more likely to be collected at a crime scene. The plain whorl has two deltas and one of the ridges in the fingerprint makes a complete circuit in the fingerprint. There is an imaginary line in the fingerprint is drawn between the two deltas that cross one of the re-curving ridges in the inner pattern of the circle. Next, the central pocket loop has two deltas with one core and lacks symmetry. The creative design of the fingerprint shape looks like a finger that has bleeding occurring in the center of it. Some ridges in the fingerprint look curved. A Double Loop fingerprint consists of two deltas, which are both distinct and have distinct shoulders. The double loop fingerprint has a formation. A  Accidental Whorl   consists of two different types of patterns and with two or more deltas. The Accidental Whorl is on the right side and has a circle formation in my own eyes.

Fingerprints are so unique they have so many amazing details. The fingerprints have specific curves and ridges and they have biblical stories to give details about each fingerprint too. I did not even know that fingerprints are named specifically they just looked like regular fingerprints. I have noticed before I did the research that there were shapes or lines going through the fingertips. I have learned a lot about identification of each fingerprint.



Citations

Watson, Stephanie. "HowStuffWorks "What Are Fingerprints?"" HowStuffWorks "Science" Web. 29 Nov. 2011. <http://science.howstuffworks.com/fingerprinting1.htm>.

This website gets the credibility of the idea about there's a one in 64 billion chance that your fingerprint will match up exactly with someone else's.

"Fingerprint Patterns." Fingerprinting. Web. 29 Nov. 2011. <http://www.fingerprinting.com/fingerprint-patterns.php>.

This website gets the credibility of the details definitions about arches, whorls, and loops in my background information.

There Are Three Basic Types of Fingerprints." Dactyloscopy. Web. 29 Nov. 2011. <http://members.fortunecity.com/julzjerg/finger.htm>.

This website gets the credibility of revealing the detailed research definitions about double loop plain whorl, and central pocket loops.



"Fingerprint Patterns." Odec - Online Digital Education Connection. Web. 29 Nov. 2011. <http://www.odec.ca/projects/2004/fren4j0/public_html/fingerprint_patterns.htm>.

This website gets the credibility of giving the percentages of each fingerprint pattern shapes being collected at a crime scene. This website also gives the detailed definition about plain arches , ulnar loop and radial loop.





Citations for pictures

"Understanding Fingerprints and CSI Crime Detection." Viewzone Magazine: A Look at Life and Human Culture from Different Angles. Web. 29 Nov. 2011. <http://viewzone2.com/fingerprint.html>.

This website above gets credibility of visual picture of basic shapes of fingerprints.



Links:
http://www.senseme.com/scripts/biometrics/fingerprints.htm



http://docs.google.com/viewer?a=v&q=cache:ty6D4wdXHeQJ:podcasts.shelbyed.k12.al.us/adishman/files/2011/09/Fingerprints-Final.ppt+www.podcasts.shelbyed.k12.al.us+adishman+files+...+Fingerprints+Final.ppt&hl=en&gl=us&pid=bl&srcid=ADGEESjuldjDg5rkXud2mUMjTRLrf0CSG4b8A0b8JDsSzi7Ydyf90lObyQwBgGHFrqMRqQnSJ3sSd5NPV5QOSBoRy9pJJaMRpVa5PM_lBekfG3kIcYsmevWs_ZtM-fuQ7P7x1Fym_Toq&sig=AHIEtbQa1eBa6TN9vH4X3Yy9IJ6gq7G09g


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