Sky News has a new podcast series called Dirty Work - investigating Interpol red notices, which allow police forces to flag their most wanted persons at international borders around the world. In episode two, reporter Sahar Zand continues to follow Brian Glendinning's story - whose Interpol Red Notice raises significant questions about how the system works. Sahar also speaks to Interpol Secretary General Jurgen Stock, who has given a rare interview talking about why it was his priority to reform a system that had let so many people down.Presenter: Sahar Zand Producer: Heidi PettSenior Producer: Sarah BurkeSound Designer: James Bradshaw Editor: Paul Stanworth