Jenkins thought some bugs could be 'lived with'
Jason Beer KC turns to a separate topic - that of bugs, errors or defects with the Horizon system.
He asks Gareth Jenkins, described as the "IT architect" of the system, about whether some flaws were ignored because Fujitsu were "happy to live with" them.
"I was aware that things had not been always thoroughly investigated, but I did not believe that such things had actually caused a direct impact on the [Post Office] branch accounts at the time," he replies.
He's asked how he was satisfied that the accounts were unaffected.
"There were a number of cases in the early 2000s where there were unexpected events occurring and in those cases... [they were] mainly happening out of hours and therefore there wouldn't have been anyone doing anything at the branch at the time - and therefore I saw the [events] as being benign."
The inquiry is then shown an email, sent by Mr Jenkins to Brian Orzel, who was part of the Horizon development team.
In it, Mr Jenkins asks for help to downgrade Horizon issues (labelled A, B, C etc based on severity) from Bs and Cs to Ds - given it was his belief that many of the issues "can be lived with".
We then see a response from Mr Orzel, who disagrees with Mr Jenkins, saying he would want every single fault addressed with "no exceptions".
"I would want them ALL fixed," the email reads.
"Are you able to recall what happened with these bugs?" Mr Beer asks.
"I think some were 'lived with' and some were fixed, but I can't remember which ones," Mr Jenkins replies.
He's asked then if Mr Orzel's suggestion that all the bugs are fixed was carried out.
"I suspect not, but I can't actually remember all the details."