DNA tests are thought to be conclusive proof—of crime, of family relation—but in some cases, our genetic material acts in mysterious ways.
Erin E. Murphy is a professor at NYU School of Law and an expert in DNA forensics. She is a graduate of Harvard Law School. In addition to scholarly journals, her writing has appeared in Scientific American, New York Times, USA Today, Slate, San Francisco Chronicle, and Huffington Post. Follow her on Twitter @ErinMurphysLaw.