Lip Print Lab

We put on lipstick and then each of us made a print of our lips on a notecard an identified five distiguishing characteristics about our lips. Then we put all the samples in the middle and the whole group left new prints on a sheet. Then we did a carousel where the groups rotated and we tried to match the prints on the sheet with the individual notecards. We successfully matched up all the group's prints using distinguishing characteristics like size, spacing, and curves.

Footprint Lab

My footprint 28cm long, 10cm wide

In this lab, we analyzed each other's footprints left in a container full of dirt. We looked at the size, shape, pattern, and other distinguishing points of the print. We recorded characteristics such as weather conditions, temperature, wind strength and direction, humidity, recent precipitation, substrate, length, width, and depth of the footprint. The footprints showed what kind of shoe it was. A sandal with a flat bottom, a  skate shoe with flat bottom and different shapes, or a basketball shoe with a circle on the ball of the foot and heel.

Drug Lab

Drug   pH   Cocaine   LSD
1         7          -            -
2        10         +           -
3         3          -            +
4         6          +           -
5         6          -            -
6         8          -            +

Poison Lab

Poison- Any substance that can cause a disturbance to an organism, usually by chemical reaction when absorbed by an organism.

One   1        2         3

Cr      -         -         -

Pb      +        -         -

Fe      -         +        -        

Two     1       2       3

Sugar   -        -       -

Three    1         2         3

NH3      +         +         -

pH        11        9         8

Four       1         2         3

Aspirin    +         -         -

pH          2         7         7

Five        1         2         3

Cyanide   -         +         -

Six         1         2         3

Iodine     -         -          +

Crime Scene

Scene 3 Clues

Clue 1: Size 8 high heel shoe indicates a female victim or criminal.

Clue 2: Note: “Someone please help me” matches Tyrese Jefferson’s handwriting.

Clue 2A: Note: “You will never find her” indicates the victim is a female and was taken from the scene. The handwriting matches Smokey Johnson

Clue 3: Fingerprint: Plain whorl, matches Smokey Johnson’s print

Clue 3A: Fingerprint: Ulnar loop, matches Sandra O’Connor and Tyrese Jefferson

Clue 4: A piece of jewelry, indicates that either the victim or criminal was a female. It possibly fell of in a struggle or when moving the body

Clue 5: A piece of nylon

Clue 6: A clear liquid, positive test for iodine. Iodine can be used to poison someone with a thyroid problem. Tyrese Jefferson had a thyroid problem, indicates someone possibly tried to poison her or was found in Tyrese's house .

Clue 7: Footprint: 30cm long, 10cm wide

Clue 8: A+ blood sample, matches with Tyrese Jefferson, Jeb Sampson and Courtney Smith’s blood type. Indicates violent behaivior or struggle, could belong to either victim or criminal

Clue 9: Hair: matches black female hair, color was dark brown, light brown, and white. Hair possibly pulled out in struggle.

Clue 10: Fingerprint: left on glass, not identified.

Story

Tyrese was in her house when she heard the footsteps of someone approaching. She wrote the note "someone please help me" afraid that the intruder would hear her voice if she called 911. Smokey then found her and tried to take her. In the struggle Tyrese bled leaving the blood sample and was possibly knocked unconscious. Smokey wrote the note "you will never find her", dragged Tyrese to his car and left. Articles of evidence such as the earing, shoe, fabric, and iodine sample either came off during the struggle or while transporting the body, or was found in Tyrese's house.

Bibliography

"Developing Fingerprints." School of Chemistry - Bristol University - UK. Web. 06 Dec. 2011. http://www.chm.bris.ac.uk/webprojects2002/thomson/fingerprints2.htm.

"Fiber Facts - Information on Different Types of Textile Fibers." NuMei Yarns - Quality Yarn, Wholesale Yarn, Discount Yarn. Web. 26 Nov. 2011. http://www.numei.com/fiberfacts.htm.

"Hair Follicle." IIS7. Web. 01 Dec. 2011. http://apbrwww5.apsu.edu/.

"History of Fingerprints." Crime Scene Forensics. Web. 29 Nov. 2011. http://www.crimescene-forensics.com/.

HowStuffWorks "Learn How Everything Works!" Web. 27 Nov. 2011. http://www.howstuffworks.com/.

"Metric Measurments." Clinton Community College. Web. 01 Dec. 2011. <http://faculty.clintoncc.suny.edu/>.