Question to the Department for Business and Trade:
To ask His Majesty's Government when they first became aware of the prosecutions being brought against sub-postmasters for alleged deficits arising from deficiencies in the Horizon software system.
This is a matter for the statutory Post Office Horizon IT Inquiry. It would be wrong to prejudice its work.
983 Post Office-related convictions have been identified during the relevant period. Not all of these will be directly related to the Horizon system.