[jdietrich]

The Post Office knew that the Horizon system was deeply flawed and that the prosecutions they were pursuing were unsound. They intentionally covered up this fact. The courts adjudicated based on evidence provided by the Post Office, but that evidence intentionally omitted things like error logs that would have undermined their case. The defendants had a right to see that evidence, but the Post Office simply denied that it existed. The Post Office were helped by the fact that the rules of evidence presume that computer records are accurate unless shown otherwise - the burden was on the defence to show that Horizon was flawed, not on the Post Office to show that it was reliable.

Lots of things had to go wrong for this miscarriage of justice to happen, but at the core of it all is the fact that the Post Office lied for years - to the defendants, to the courts, to the media, to government. Things should have been handled differently, the case has revealed a number of systematic failings that need to be urgently addressed, but there's only so much the legal system can do to defend against very sophisticated people who engage in a determined campaign of deceit. We can reduce the risk of something like this happening again, but sadly we can't eliminate that risk entirely.

https://davidallengreen.com/2024/01/how-the-legal-system-mad...