What if the evidence used to convict parents isn’t as solid as it seems? In this pre-season bonus episode, Melanie Reid speaks to a scientist and adjunct law professor who exposes cracks in the medical evidence used in court - and asks whether bad science is tipping the scales of justice.

Sign up to DELVE+ to get early access to new episodes and listen to our latest investigation, Diagnosis of a Crime, all four seasons of award-winning The Boy in the Water, both seasons of Fractured, the explosive Powder Keg and Satanic Panic: Peter Ellis, the Creche Case & Me, all ad-free. Presented by investigations editor Melanie Reid. Discover more at Newsroom.co.nz and search for Melanie Reid Investigates on Facebook and Instagram.

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