After 20 years behind bars, Kathleen Folbigg has been pardoned, and released from prison.

A landmark inquiry saw NSW’s top prosecutor accept there was reasonable doubt about her convictions over the deaths of her four children.

If you’re not aware or Kathleen’s story, you’re about to hear our episode with investigative journalist Jane Hansen who unpacked the forensic evidence that was to be examined in the inquiry. The evidence that has now led to Kathleen Folbigg’s freedom...