“How would you describe it?” asked Hali Gertz, after dropping ‘blood’ out of plastic squeeze bottle onto a sheet of paper.
“Crescent shaped,” said Justin Woods.
All part of a day’s work at CSI Oak Lawn.
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The Richards High School students, controlling for variables of height and surface material, tracked blood spatter patterns.
Students dropped the blood (corn syrup mixed with food coloring) from various heights onto notebook paper, wood, tin foil, plastic wrap, and waxed paper. They posted the results – describing the size and shape and even drawing the splats – on data tables.
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The lab comprised the latest exploration of crime scene investigative techniques in Forensics.
“Students experience different aspects of CSI,” said teacher Mary Kendryna. We start with a unit on procedures followed at a crime scene.”
That includes evidence collection, observational skills, determining time of death, and the role of police investigators.
Class also features labs that explore specific fields of CSI such as anthropology, entomology, blood spatter, DNA, fingerprinting, and toxicology.
