Hurumanu - Fingerprints

Forensic Science

Definition:

Forensic science is the application of science to criminal and civil laws, mainly on the criminal side during criminal investigation, as governed by the legal standards of admissible evidence and criminal procedure.

5 Forensic Science topics;

1. Finger prints
2. foot prints
3. Clothes
4. DNA
5. Ballisticks

     

    

    

Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1. Ink
2. Balloon
3.  Fingers

Steps

1.   Get a balloon and ink
2.   Dip your thumb in the ink then Press it on the balloon  
3. Then dip your index in the ink then press it on the balloon on the other side tho  
4. Blow up your balloon and tie it up     

Insert two pictures here of your fingerprints

Ink prints

Thumb print	Index finger print

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Sharney	Whorl	Whorl
Talia Chloe	Arch Arch	Arch Arch

Questions:

Do people always have the same type of fingerprint on their thumb and index finger? Nope
What was the most common type of fingerprint in your group? Arch

Dusting fingerprints:

Lifting fingerprints

Aim: To learn how to lift hidden fingerprints from an object.

1. Lifting and Gathering fingerprints.

Equipment:

1.   White Powder ( Baby Powder)
2.   Makeup brush
3.   plastic
4.   Finger 

Method: 

1.  Stick your thumb/ finger on a piece of plastic
2.   then add baby powder just a little
3. then use a brush to dust it a little
4.   then stick some tape on it then peel the tape off the plastic
5.  then put it on black paper

Results:

Lifted fingerprints

Thumb print	Index finger print
My ones the middle one	Didnt do a index finger

Conclusion Questions:

What could you do to improve your results next time? Not add much powder so then it works so you dont need to do it more than once

Why do you think fingerprints are useful to crime scene investigators?  So you know who it is right away so you can catch them faster before they do it again.