There is so much that has been written and said about the Horizon scandal over the past 10 years, that it’s hard to pick out what actually happened, and how it got so bad. When things go really badly wrong, there’s never just one cause. Many things have to have failed. In the case of Horizon, this list is huge: the tech, the supplier, the culture, the investigations, the lawyers, the system of private prosecutions, the management, the politicians, the governance and scrutiny, the recovery...
