Crime Scene Investigation At SDHS

Stephen Decatur High School biology teacher Jim Krall along with Worcester County Deputy and School Resource Officer Jason Chance teamed up to teach a lesson on crime scene investigation. Students analyzed a fictitious crime scene, then conducted DNA testing of blood found on the scene using gel electrophoresis and compared it to blood samples of suspects. Above, Chance is pictured with juniors Mari-Claire Bowie, left, and Michelle Rosinski adding electrical currents to the prepared DNA.