Category MA P23 Bloody Math

Abstract The purpose of my project is to determine the origin of blood spatters. As

we all know crimes happen all the time. The mystery to every crime is who

did it and what really happened. It is very rare that the crime scene

investigators, or forensic scientist, are at the scene. Therefore, in this

project I will play the role of an impartial scientist. To figure out what really

happened, I will be Investigating blood spatter to deliver the facts using

mathematical models.



The procedures involve spraying synthetic blood from a spray bottle using

the droplet setting from a pre-determined height. After the synthetic blood

has dried, measurements will be taken of the length and width of several

droplets. These measurements will allow me to determine the angle of

impact. I will then draw lines through the center of these droplets to see

where they meet, called the area of convergence. Measuring the back of

the stain to the area of convergence, allows me to find the origin of the

blood spatter, which should be above the area of convergence. Multiple

methods involving mathematical principles will be used to get the most

accurate data possible.

Bibliography http://www.clt.uwa.edu.au/__data/page/112508/fsb05.pdf

http://www.suite101.com/content/determining-direction-in-blood-spatter-

analysis-a171816
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