My understanding is that one of the biggest issues with all the various court cases was that the prosecution did not disclose relevant material to the defendants. The fact that issues had been raised with the system was clearly highly relevant, and so should have formed part of this discolsure, but was simply ignored. Had these issues been disclosed then it would have cast considerable doubt on the PO position that the software was infallible.Watching the testimony from the Post Office investigator at the inquiry today, a common theme became apparent - the accused sub-postmasters and sub-postmistresses being discussed today being given the option of lesser penalties (ie avoiding jail) provided they signed affidavits saying the cash shortfall 'errors' were their fault and not the Horizon system's.
Imagine for a moment yourself, a law-abiding citizen and a pillar of society, being bullied into signing a document absolving the system that put you in the position you found yourself. The system that stole tens of thousands of pounds from you that you had to give the Post Office to make good the system's fictional shortfall.
It's like something out of a Kafka novel. Just appalling.