Apr 09 2024

The Invisible Transfer: Exploring Trace DNA in Forensic Science

In this interview, Molly Younker, a master’s student from West Virginia University, delves into her current study on the secondary transfer of trace DNA, particularly through nitro gloves, and its implications for crime scene investigations. This discussion sheds light on what trace DNA entails, the challenges in collecting and analyzing low levels of DNA, and the fascinating simulation experiments conducted to understand how DNA can be inadvertently transferred between surfaces and objects at crime scenes.

Molly’s research is particularly inspired by real-world cases, such as the Amanda Knox case, where the secondary transfer of DNA via investigative gloves has been a topic of concern. Through meticulously designed simulations, her study explores how an innocent individual’s DNA can end up on an evidentiary item they’ve never touched, raising significant questions about the handling of evidence and the potential for wrongful attribution of DNA at crime scenes.

This video provides a rare glimpse into the world of forensic science research, highlighting the complexities of trace DNA and the importance of understanding its behavior to ensure the integrity of crime scene investigations.

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