Friday, November 11, 2011

Forensic Science Project Part I: Fingerprinting

    Fingerprint types
    Types of Fingerprinting
    Fingerprints do not just have basic shapes and patterns but they also have specific types that can be seen or can not be seen. Direct fingerprints are literally collected from a suspect at a crime scene.Direct prints also known as visible prints they occur when a specific substance such as blood, dirt or oil on the finger comes in contact with a smooth surface. This leaves a ridge impression that is seen by the naked eye clearly. This print probably is just take at a enrolment of a person going to jail. An alternative type of fingerprint is latent prints. This particular type of fingerprint is formed from sweat found in the ridges of the finger. When a finger touches any body parts, moisture sticks to the ridges of the finger . So when fingers touch an object like a green lamp a transparent material is transferred onto that object. The impression that is left on the lamp reveals the ridges in the fingerprint. Plastic prints are visible to the naked eye. Plastic prints occur when a finger touches soft surfaces such as clay, wax, or paint. These surfaces of clay, wax, or paint retain the finger print impression.
    Citations
    "Types of Fingerprints." Fingerprinting. Web. 04 Dec. 2011. <http://www.fingerprinting.com/types-of-fingerprints.php>.
    This website  above gets the credibility for the research for all types of fingerprints.
    Links

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