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Be a Detective : Finger Print and Foot Print Capture and Analysis

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Hi this is a simple Instructable on how to capture fingerprints and footprints using items easily available in the market. :)

Forensic Science is the applications of a broad spectrum of sciences to answer questions of interest to a legal system. This may be in relation to a crime or a civil action. The word forensic comes from the Latin forēnsis, meaning "of or before the forum."

Please Rate this Instructable and Follow me if you liked it. :)

Dedicated To Daniel Haidermota, HaAn Nguyen Thi, Sahr Jalil and Waliyah Sahqani. 

Made by Manish Kumar
 
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Step 1: Foot Print Analysis : Find a Foot Print

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Find a footprint around your house in any sort of mud or sand. If you can't find one, you can make one. Just engrave your foot print in sand or gravel around your house. 

Step 2: Foot Print Analysis : Materials Needed

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You will need the following materials for this experiment.
  1. Disposable Plastic Cups
  2. Plaster of Paris
  3. A Water Supply
  4. A Ziploc Bag
  5. A Shoebrush

Step 3: Foot Print Analysis : Step 1

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Measure 1.5-2 cups of water in a disposable plastic cup and add it to the Ziploc bag. Next add 3 disposable cups full of plaster of Paris to the Ziploc bag. Pour water first and then plaster of Paris as the mixture heats up if you do it the other way around. Exothermic Reaction :)

Step 4: Foot Print Analysis : Step 2

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Gently Stir the mixture until it has a thick soapy texture. Make sure that there are no air bubbles. If necessary add more water or plaster of Paris. (Make sure that the mixture you make is enough liquefied that you can easily pour it on the foot print.)

Step 5: Foot Print Analysis : Step 3

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Pour the Mixture over the foot print. Wait for around 30 - 40 minutes. (Keep checking the thickness of the mixture over time until you have enough thickness on the top layer of the plaster.)
kimia132 years ago
it was actually cool!
howtowithmanish (author)  kimia132 years ago
Haha which part was cool?
all of it. but the foot print was cooler! haha!