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Fingerprints!

How is are fingerprints used in a criminal investigation?
by

Emma Bell

on 21 February 2014

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Transcript of Fingerprints!

6.
Permanent scarring is the only way a fingerprint can change.

7.
Fingerprints can be tracked to find if the criminal has committed a crime before.
8.
2.
Automated fingerprint analysis systems work by creating a computer model of the live print scan. kind of like the ones we use at lunch.
5.
They can be used to quickly and efficiently to confirm or dispose a persons identity.

1.
There is no fingerprint that is the same.
3.
Fingerprints can be scanned either dry or wet.

4.
Most common types of physical evidence are found at a crime scene.
Fingerprints use peoples physical characteristics to identify them.
Fingerprints!
By: Abbey Safos, Emma Bell, And Abby Golden

9.
A fingerprint is made from an impression left from friction ridges of a human finger.
10.
Some animals have fingerprints, including koala bears!
11.
Fingerprints help solve criminal investigations 87% of the time
12.
The study of fingerprints is called
dactyloscopy.
13.
It's not just the finger, but the fingerprint is what enables our hand to stick to other objects.
14.
Fingerprints are left behind because of the
oil on your skin.
15.
Fingerprints are hard to find on fabric and carpet.
fabric
carpet
16.
If skin peels off of you, your fingerprint will not change.
17.
In India a thumbprint is used as you signature, and thats how they identify you there.
18.
A loop is the most commonly found fingerprint.
19.
There are three main types of fingerprint patterns: loop, arch, and whorl.
loop
arch
whorl
20.
A fingerprint has a 1 in 64 billion chance of matching with someone else.
21.
Even if you age, a fingerprint will never change, not even with a wrinkle, which makes it easier to solve a case.
22.
Fingerprints are made with a wide arrangement of friction ridges.
23.
Investigators look at the shape, size, arrangement, and number of lines in fingerprints to tell one from another.
24.
Fingerprints are a type of biometrics
25.
Fingerprints have the potential to link a series of crimes together.
26.
They can also be used to place a suspect at the scene.
27.
Sir William Herschel was the first to use fingerprints as identification.
28.
It is almost impossible to identify a fingerprint in any type of cloth because it absorbs it.
29.
You develop your fingerprint when you are born.
30.
When you leave a fingerprint with only your skin oils it is called a latent fingerprint, and cannot be seen with the naked eye.
Thanks for watching!
Learning Goals
during this presentation you
should be able to detect:
how fingerprints are used in a criminal investigation.
where fingerprints can be found and where they cannot be found.
how fingerprints are made.
Full transcript