Persuasive Speech On The Attention Getter For Forensic Prints

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Recommended: Forensic science and scientific method

I. Attention Getter: Did you know that fingerprints are one of the first things to form before we are born?
II. Relevancy Statement: We all have them but probably have never really studied them.
A. No two prints are alike.
B. Once they form they don’t ever change unless the skin is damaged enough to cause a permanent scar.
C. Scars can alter the ridge patterns of the fingerprint but once the scar has formed it will stay the same.
III. Credibility Statement: In my research I learned that this persistence makes fingerprinting a very reliable technique to identify criminals and victims.
IV. Thesis Statement: In this speech I am going to explain how forensic teams use fingerprints to identify individuals.
V. Preview of main points: Now I am going to take you through the process of identifying, collecting and analyzing fingerprints.

[Transition]: Before we can find a fingerprint, we have to know what to look for.

Body
I. Types of Forensic Prints (Crime Library)
A. There are 4 types of prints. The first kind is called an exemplar print.
i. These are prints purposefully taken from a certain individual ii. They are not found at crime scenes but used as comparisons to those prints found at crime scenes.
B. The second kind of print is called a latent print
i. These prints are not easily visible and will sometimes be invisible. ii. They are composed of oils from the skin. iii. They can also be found on anything you touch.
C. The third kind is called a patent print.
i. These prints are visible to the naked eye. ii. They are composed of some type of smudge-able substance like ink, blood or dust.
D. The fourth kind is called a plastic or impressed print.
i. These prints form a visible impression ii. They are composed in a substance capable ...

... middle of paper ...

...o complicated and small was formed before we were born and remains completely unchanged as we grow older.

References
Claridge, Jack. "Latent Prints." Latent Prints. Explore Forensics, 5 Sept. 2012. Web. 27 Feb. 2014.
"Fingerprint Techniques Manual." New Mexico Department of Health Improvement. Caregivers Criminal History Screening Program, n.d. Web. 27 Feb. 2014.
"Fingerprints." Crime Library. Crime Museum, n.d. Web. 26 Feb. 2014.
Holder, Eric H., Jr., Laurie O. Robinson, and John H. Laub. The Fingerprint Sourcebook. D.C.: U.S. Department of Justice Office of Justice Programs & National Institute of Justice, 2011. International Association for Identification. Web.
James, Stuart H., and Jon J. Nordby. "Fingerprints." Forensic Science: An Introduction to Scientific and Investigative Techniques. Boca Raton, FL: CRC, 2005. 341-60. Google Books. Web. 27 Feb. 2014.

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