Post Office inquiry hears of Horizon problems from 1999

Summary

1. The Post Office inquiry continues today with evidence from David Miller and David Mills - watch by pressing play above
2. Miller was managing director of the Post Office in the early 2000s - but today's questioning will likely focus on his time as programme director of the Horizon project
3. Between 1999 and 2015, more than 900 sub-postmasters and postmistresses were prosecuted due to the faulty Horizon IT system
4. David Mills - appearing after Miller - joined the Post Office as chief executive in 2002, before stepping down a few years later
5. Last week the inquiry heard from several former Post Office bosses who said they were unaware the company was prosecuting its own staff
6. Phases five and six of the Post Office inquiry started last week and will continue for 15 weeks - it's presided over by Sir Wyn Williams
7. You can follow today's proceedings by tapping play at the top of the page