CSI Madeira

December 2, 2013

Twelve Madeira girls from the Forensic Science class visited the Fairfax City Police Department on Monday, November 25. The class was hosted by Detective Trey Leightley who quizzed the students on their forensic knowledge and explained how evidence is collected, stored, and applied to solving real cases. The tour included the digital forensics lab, the evidence processing lab, and the surveillance and crime scene vans. The students were allowed to create and collect tool mark evidence using silicone casting material, three-dimensional shoe impressions using casting plaster, and two-dimensional shoe prints using an electrostatic dust print lifter. Detective Leightley also demonstrated how gunshot residue is sampled from a suspect’s hands and how fingerprints can be obtained from porous and nonporous surfaces, even skin. The field trip highlighted all that the girls had studied in the one-semester forensic science course and connected their theoretical knowledge with real-world practices.