Greg Kelly joins us again to talk more about his work, this time in the field of arson investigation. Greg outlines the telltale signs of arson and his involvement investigating the tragic Quakers Hill nursing home fire.  See omnystudio.com/listener for privacy information.

Detectives are often credited with solving tough crimes, but it's often the work that's done behind the scenes that dictates if a crime is solved, this is the work of the forensic investigator. We're joined today by Greg Kelly, a forensic investigator who will take us into the world of the crime...