According to Wikipedia, "After some convicted SPMs successfully sued the Post Office, 555 convictions were declared unsafe and to have been obtained unlawfully."
555 wrongful convictions in British courts alone, related to a single corporate entity.
A small glimpse into the scale of atrocities committed by "justice" systems every day. I have no doubt that wrongful convictions account for double-digit percentages of the total, in every country. Which is absolutely insane, because it means that in a typical prison housing a few hundred inmates, there are dozens of innocent people.
And hardly a mention of it in the mainstream press, at least not compared to its impact. This should have been front page every day for the past 20 years.