Over a 16-year period the Post Office wrongfully accused about 3,500 branch owner-operators of theft, fraud and false accounting, resulting in more than 900 prosecutions, despite knowing from at least 2010 that there were faults in the Horizon IT system.
To date no Post Office staff or suppliers have been punished. Here are some of those involved who still have questions to answer for their role in what has frequently been described as the most widespread miscarriage of justice in UK history.
