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Thursday, May 23, 2019

Barefoot Burglar

In groups of 3 you are going to need to use your forensic knowledge to solve a crime. You must use the web page: Barefoot Burglar Evidence

  1. Determine which of the four suspects is the "Barefooted Burglar"? 
  2. What do you think was the motive for this crime? 
  3. Write the results of your findings and convince a jury of your peers


The Crime

At approximately 7:15 a.m., Friday morning, Mrs. King, the science teacher, thought something was fishy as she walked down the hall and noticed that her door was open. She walked into her classroom and immediately discovered that the small aquarium had been broken and her prized gold fish were gasping in the sink. Beside the broken aquarium were the shattered remains of the pink piggy bank that had been on the shelf above the aquarium. A can of blue paint was spilled on the floor. Footprints of a barefooted burglar led to an open window. Bits of a white powdery substance were found next to the broken, empty, piggy bank. The only other item found was a half-eaten large chunk of chocolate candy.

When the police arrived they immediately began to gather forensic evidence.





Dan the Man

Height : 176 cm
Alias: The General
Dan was wearing a woolen general's uniform with small holes when apprehended in the woods. He claimed to be gnawing on wood for moisture and insects to practice his survival training. His teeth look like a beavers from gnawing. His wife complains that she never has any baking soda due to Dan's compulsion about storing clothes in mothballs. He thinks the baking soda takes away the mothball smell, so he stuffs his pockets with the substance. Also, his wife reports that her giant chocolate kisses continually disappear from the candy cupboard. He blames their dog Patton, an English bull terrier, who patrols the neighborhood. His neighbors report that Dan loves the military. He was very regimented about playing taps on his bugle every day at sunset until an irate neighbor broke his bugle. Dan has been trying to save money for a new one.
Peg the Leg

Height: 152 cm
Alias: Lucky Lady
Peg is a librarian known for hanging horseshoes and four leaf clovers in her library. Employees say she is so superstitious she insisted on carpeting in the library instead of laying tiles so she would not step on the cracks. She wraps construction zone tape around open ladders so no one can walk under them. Cola bottles litter her office, which she drinks with chocolate chunks. Her teeth are chipped from knocking the bottles against them. She is always throwing salt over her shoulder for good luck and keeps a salt shaker in her purse. Her alibi is that she was busy closing open umbrellas the morning of the crime.



Jake the Jock

                                                                         Height 201 cm
                                                     Alias: Armchair Quarterback

                                                                                         
Jake the Jock is known for quoting statistics on every sport from boomerang throwing to sled dogging. His neighbors report that he is the neighborhood pitcher for baseball games. Last year a baseball hit him in the mouth and knocked out his front tooth. This has cramped his eating style of chocolate chunks, candied apples, and corn on the cob. His wife claims that on the morning of the crime Jake was rubbing his hands with cornstarch to keep them dry in preparation for an important baseball game.



Lou Lou

Height: 160 cm
Alias: Sweet Tooth
Lou Lou is so addicted to sugar that she never leaves home without it. She loves to bake sweet things and has an entire pantry full of sugar bins. She claims to have been baking her famous chocolate chunk cookies the morning of the crime (although not a morsel of cookie or chocolate chunk was left when the police arrived.) Lou Lou rarely wears shoes, which often causes her to slip and break things, especially her collection of ceramic pigs.

Evidence:
  • Fingerprints: Sticky, 'swirl' fingerprints were lifted from the aquarium and piggy bank. 
  • Footprints: The painted footprints were measured and were for 26 cm feet. 
  • Teeth: The chunk of chocolate candy was collected for examination. It appeared there were teeth imprints.
  • White Powder: The white powdery substance by the piggy bank was carefully placed in a plastic bag and taken to the forensic chemist for identification . It had very small grains and when mixed with Iodine it reacted making the colour brown. It did not have a smell.
Name: Dave
                        
Fingerprints: No.

Mouth prints: Has a chipped tooth.
Shoe size: 16
White powder: None found.
Name
Evidence
DanFingerprints: Whorl
Mouthprints: Beaver teeth
Shoe size:Nothing
White powder:Baking soda
PegFingerprints:loop
Mouthprints: Chipped teeth
Shoe size:Nothing
White powder:Baking soda
JakeFingerprints:Loop
Mouthprints: Missing front teeth
Shoe size:Nothing
White powder:Baking soda
LouFingerprints:Arch
Mouthprints: Perfect
Shoe size:Nothing
White powder:Baking soda

Findings: ( what did you find. Summarise what you have written in the table above)

We found out that the white powder was actually baking soda.We also found out that who was the burglar thief because of all of the evidence that we found. We also found out that then had Beaver teeth, Peg  had teeth and Jake had missing front teeth. we didn't really find out what Lou Lou’s teeth looked like because it didn't say anything about her teeth. We also found out that Dan had the whorl, Peg had a look, Jake had a loop and Lou Lou had an Arched fingerprint.




Verdict: ( who is the burglar and why)

We think it might be Lulu because she rarely wears her shoes and it says in the story that the person who  did it wasn't wearing any shoes. And also it says that when she doesn't wear shoes she slips and break stuff. She also really  likes sweets and can't leave her house without them. Also there was note left in the crime scene and the hand writing matches Lou Lou’s handwriting perfectly. They also find  white powder in the crime scene and when they dissolved the white powder in vinegar it bubbled and if you search what dissolves in vinegar and makes bubbles it will come up with baking soda and she likes to bake  sweets like cookies. Also the blood type that was left behind in the crime scene was anti b or an anti a and Lou Lou has an AB blood type which matches the same blood that they tested in the science lab. The only thing that didn't match was  fingerprint and her teeth. The only thing that confused us was when the story said “The culprit apparently cut HIMSELF with the broken glass”So we thought it was a guy at first, but we think that it's Lou Lou because there are way too much evidence against her.



http://www.cyberbee.com/whodunnit/crimescene.html

Fingerprints




Image result for forensicsForensic Science
   
Definition:
Forensic Science



5 Forensic Science topics;


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

    
Finger prints

Aim: To look at the different types of fingerprints.

Materials: 

  1.   Plastic
  2.   White powder
  3.   Brush
Steps :

1. Get the plastic and put it on a flat surface.
2. Put your thumb and put your index finger on the plastic.
3. Put the white powder on the plastic.
4. Use the brush to spread the white powder out.
5. You may see your fingerprint.
6. Put a black paper underneath the plastic.
7. Look through a magnifier glass.
Image result for fingerprint types
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)
Qynwhorlloop
Kristillewhorlwhorl
Faye / mewhorlwhorl


Questions:
Do people always have the same type of fingerprint on their thumb and index finger? No people have different fingerprints

What was the most common type of fingerprint in your group?
It was a whorl
Conclusion Questions:

What could you do to improve your results next time?
Next time  I should make the finger prints clearer

Why do you think fingerprints are useful to crime scene investigators?
I think they're useful because it can know what the burglars fingerprints looks like which makes it easier for the police,