How did a 3-year-old make it 1.2km across rough terrain, over a gate, at night in a full nappy, without leaving a scent trail? The Coroner assesses whether Lachie could have reached the ponds on his own.

Sign up to DELVE+ to get early access to new episodes and listen to all four seasons of our award-winning The Boy in the Water podcast, 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.

Hosted on Acast. See acast.com/privacy for more information.