Experts on Trial is a new forensic science podcast on BBC Radio 4.
In it, Dr Julia Shaw tackles some of the issues facing expert witnesses in court through the lens of a number of important cases -including that of Lukis Anderson whose DNA found its way onto the fingernails of a murder victim that he had never crossed paths with.
In the final episode, Experts on Trial - DNA Transfer, Julia talks with Millington Hingley's Jo Millington about the limitations of forensic DNA evidence and how bias in forensic science might come into play.
Jo: Our tests are so sensitive that they can detect DNA that is from indirect transfer, which means I don't have to be there for my DNA to be in a place. Julia: That sounds terrifying.
Listen to the full episode on BBC Sounds - Experts on Trial Episode 5 - DNA Transfer.