Post Office bosses ‘maintained fiction’ Horizon was accurate, inquiry concludes

Campaigners outside Aldwych House, central London, where the Post Office Horizon IT inquiry was held (PA) - (PA Archive)

Post Office bosses should have known Horizon was faulty but “maintained the fiction that its data was always accurate” when prosecuting subpostmasters, the first tranche of a public inquiry’s final report has concluded.

Chairman Sir Wyn Williams said “a number of senior” people at the organisation were aware the system, known as Legacy Horizon, was capable of error up until it was changed in 2010, with a number of employees also aware the updated system, Horizon Online, also had bugs and defects.