Absolutely wrong. Mistakes happen. Bugs, fat fingers, laziness, hangovers--whether by human or machine, errors occur. The legal system was supposed to uncover the facts. Because of the Post Office coverup, the judges were told " no, there are no bugs. No, nobody has remote access to these terminals. Yes, the only possible way these figures could turn up is through theft." This despite the fact that at least one Post Office inspector explicitly wrote in a report that there was no evidence of theft. The legal system failed to penetrate the veil of lies and find the truth. That's a legal systemic failure.