Finger Prints

Forensic Science

Definition: the application of scientific methods and techniques to matters under investigation by a court of law.

5 Forensic Science topics:

1.  DNA
2.  Fingerprints
3.  Ballistics 
4.  Footprints
5. Clothes 

    

Fingerprints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1. Inkpad  
2. Balloon
3. 2 Fingers 

Steps:  

1.   Roll your finger on the ink pad 
2.   take a deflighted balloon put it on the table  put your finger on the balloon 
3.   put your finger on the balloon 
4. Blow up balloon  
5. and see what type of Fingerprint you have

Insert two pictures here of your fingerprints

Ink prints

Thumbprint	Index fingerprint
Loop	Arch

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Rowina	Loop	Arch

Questions:

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

Conclusion: I have learnt that I have different type's of fingerprints some of my fingers are different than the rest of my fingers.

Dusting fingerprints:

Lifting fingerprints

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

1. Lifting and Gathering fingerprints.

Equipment:

1.  Baby Powder
2.   Plastic
3.  Makeup Brush
4.   Black cardboard paper
5.   Tape
6.  Magnifying glass

Method: 

1. Get a piece of plastic put your thumb on it with nothing on it 
2.  Take a makeup brush use baby powder and lightly brush
3.  Use sticky tape on the area you put your fingerprint on 
4. leave the tape on the fingerprints and get a black cardboard paper
5. take the tape off of the plastic and put it on the cardboard paper and use a magnifying glass to see what type of fingerprints you have 

Results:

Lifted fingerprints

Thumbprint	Index fingerprint
Loop	Arch

Conclusion Questions:

What could you do to improve your results next time?

Add more powder so it's more seeable.

Why do you think fingerprints are useful to crime scene investigators?
I think it's very useful because you can find like the person who did it and overall it's super fun, I think it's a really good thing to learn just in case you end up being apart of the defective area, and you end up in the forensic department.