Forensics fingerprinting

Pictures of Fingerprints
(Can you guess the pattern)

Sample of a Fingerprint Card

The information on a finger print card must be typed or printed legibly. There can not be any marks or highlighters used on the card. The information in each block must be filled out correctly. If the card is not filled out correctly, it can delay results.

This is an example of an FBI card

Fingerprint

What is a Fingerprint?

A fingerprint is an impression of the underside of the end of a finger or thumb. Your fingerprint is very unique, because no two people have the same pattern. A fingerprint is used to identify a person. There are two ways to identify a person by using the fingerprint method. The first way is by using your fingers and thumbs. The second method is by using palm prints and footprints, this method is used on infants.




How the Fingerprint method works?


Traditionally, impressions have been taken from a person using ink and paper, but in live-scan fingerprinting electronic images produced by a video scanner are converted by computer into binary codes, which can be more readily compared. (The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. ) A known print is intentionally recording of the friction ridges, usually with lank printers ink rolled across a contrasting white background that's usually a white card. When friction ridges come in contact with a surface that's receptive to a print, material on the ridges, such as perspiration, oil, gas, ink, etc. which could be transformed into a item.

How fingerprints are used in our daily lives

1. In Crime Investigation

2. To prevent identity theft

3. To prove identity of a dead person

4. Identify bombers

5. Find drugs

6. Find explosives

7. Identify DNA

8. Reveal addicting habits

Resources

http://www.highered.nysed.gov/tcert/ospra/samplefpcard.html

http://www.encyclopedia.com/rankimage

http://www.howtodothings.com/business/how-to-make-use-of-fingerprints