In this week's episode, I have a fascinating conversation with Bob Gallagher MBE. Bob has had an incredible career, firstly in the Royal Navy, very nearly losing his life in the Falklands War of 1982. He went on to become one of the most experienced crime scene investigators in the UK. Bob began his career working on the Harold Shipman serial killer investigation and ended it as the lead crime scene investigator for the Manchester Arena attack that killed 22 people. ***WARNING: This episode contains extremely graphic and potentially upsetting material***