An investigation into how the Post Office scandal ruined lives in Scotland. For more than a decade, Scottish prosecutors took dozens of former postmasters to court based on potentially flawed computer data. Reporter Mark Daly investigates how the Post Office and Scottish justice system got it so badly wrong in what’s been described as the widest miscarriage of justice in history. Daly meets Scots who were wrongly convicted, lost their livelihoods or were forced into confessing to crimes despite not stealing a penny; while the Post Office, a trusted and treasured national institution, covered up the truth.