Under Investigation with Liz Hayes reveals investigative twists and turns that make for a gripping, edge-of-seat viewing experience. In each episode, Liz Hayes is joined by a new team of crime and forensic experts who are specially equipped with the know-how to delve deeper into cold cases and ask the right questions to solve them.  

Under Investigation with Liz Hayes returns for its fourth series to reopen more mind-blowing mysteries with the help of Australia’s criminal experts. As explosive new evidence is put under the spotlight, viewers are invited to dust off their magnifying glasses to probe and uncover decade-old answers.