We reveal deep concerns that the lab managers put a new, untried and ill-conceived testing system in place immediately after the public inquiry was called. Was it a deliberate strategy of sabotage to try to cover up the mistakes of the past? Or merely accidental - the product of poor judgment? The inquiry is focusing long and hard on this as Dr Kirsty Wright helps identify the errors and potential destruction of evidence. The toxic culture inside the lab are on display along with three of the fascinating legal characters in the inquiry. Join The Australian’s chief national correspondent, Hedley Thomas, and his colleagues Claire Harvey, David Murray and Matthew Condon, as they discuss the second week of the Sofronoff inquiry. See omnystudio.com/listener for privacy information.