Police praised her bravery, and they described the evidence she gave to a court as "powerful and emotional". This woman helped them convict the drug dealer who shot 9-year-old Olivia Pratt-Korbel dead in her own home in Liverpool.But her courage comes at a huge cost. It’s reported that she’s had numerous death threats against her. She’s been granted anonymity and faces a decision on entering witness protection for years to come. On this Sky News Daily, Sally Lockwood discusses how witness protection works with our crime correspondent Martin Brunt and Simon McKay, a barrister who has advised government on witness protection. Plus, she hears from Reece, who spent several years on a witness protection programme during his childhood. Annie Joyce – senior podcast producer Alex Edden – interviews producer Paul Stanworth - editor