I get it, but I have to disagree on two ground.
Firstly, in UK law there is an implicit assumption that computers are "reliable". This means that the burden of proof is on the accused proving the software has bugs, rather than them being presumed innocent until proven guilty.
That means in the Post Office example, people were convicted because they couldn't prove the software had bugs, they were just saying "you have to prove I'm guilty, because I'm not", and the court said "no, we don't, computers are reliable and that proves you are lying and therefore guilty".
In the Ofsted case, given that schools can be put into special measures, teachers and headteachers fired, and in one case a headteacher killed herself because of the data collected and decision made on it, if those systems are not reliable they are not fit for purpose, because it turns the innocent into victims in terms of criminal, and civil employment law.
There have been calls for this assumption to be changed [1], but right now: if you are innocent but a piece of software says you are guilty, in the UK the burden of proof falls to you, regardless of how awful the people, their processes and conduct are on the other side.
Secondly, there's a deeper moral issue here. Engineers are arguably aiding and abetting. It is almost certainly the case that engineers working on Horizon and Ofsted systems did not tell all the truth all the time at the bequest of their managers and other colleagues throughout all this.
"Just doing my job", is the excuse of the scoundrel. I do not buy it. If you're complicit with despicable people, you're complicit. End of.
Yes, UK HMG has answers to give, culpability and responsibility, but let's not pretend that engineers built terrible systems, didn't have to face any consequences, and were enabled by arse covering exercises further up the chain.
We can - and must - do better than this.
[1] https://www.theguardian.com/uk-news/2024/jan/12/update-law-o...