A cloud has been cast over the new chief of the lab following revelations that a DNA extraction method may have failed across thousands of samples in criminal cases for nine years. Professor Linzi Wilson-Wilde reviewed the automated method for retired judge Walter Sofronoff’s inquiry into the lab in 2022, but in her subsequent report did not mention information that she came across showing it was having serious problems recovering DNA. In this episode, Professor Wilson-Wilde launches a staunch defence of her report for the inquiry, saying she was engaged to examine a separate issue of the method contaminating crime scene samples soon after its introduction in 2007. To read The Australian's reporting and analysis of the trial and verdict, search Shandee's Story or visit shandee.com.au. If you need support, Lifeline can be reached on 13 11 14. See omnystudio.com/listener for privacy information.