Forensic Science

Forensic Science

1. Write the definition of forensic science in your own words?

Scientific tests or techniques used

https://en.oxforddictionaries.com/definition/forensic

2. What are the 5 different things that forensic scientists do?    Look at the "What you will do" section on the careers NZ website.

1. Forensic scientists go to crime and take notes and drawing of a crime scene. 

2. They also find pieces of evidence

3. Give the pieces of evidence to the court.    

Fingerprints

Aim: To look at the different types of fingerprints.

Materials: 

1.   Balloon 
2.   A humans finger
3.   Inkpad

Steps

1. Get a human finger  
2. Dip it in the ink pad   
3. Then wait 5 seconds   
4. Take your finger off the ink pad and put it on the balloon. Make sure the balloon is not blown up.     
5. let it dry
6. Next, blow your balloon up   
7. Then see what type of fingerprint do you have? Do you have an Arch, Loop or Whorl?    

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Elisha Mae	Whorl	Arch
And ME, Risha	Whorl	loop

Questions:

Do people always have the same type of fingerprint on their thumb and index finger? No, because every finger is different. 

What was the most common type of fingerprint in your group? Whorl 

Hidden fingerprints:

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

1. Lifting and Gathering fingerprints.

Equipment:

1.  A  makeup brush 
2.   Baby powder 
3.   Clear thin paper
4. tape
5.   A human finger
6. black cardboard

Method: 

1.  Get your thin piece of clear paper and put your finger on it 
2.   Wait for 1 minute then take your finger off it   
3.   Get your brush and dip it into the baby powder. 
4.  Then with the brush lightly brush the powder onto the thin clear paper 
5.  Then shake off the excess 
6. Then take your tape and put it on top of fingerprint that is on the thin clear paper.
7. Then peel the tape and put it on the black cardboard.

Conclusion Questions:

Did you manage to lift clear fingerprints?

What could you do to improve your results next time?

Why do you think fingerprints are useful to crime scene investigators?