Was responsible for the shortfalls. In courts in england and wales, evidence produced by computers is treated as reliable unless other evidence suggests otherwise. We know that hundreds of subpostmasters were wrongly prosecuted. In those prosecutions the Post Office relied on the presumption in law that the computers were operating correctly. In 2006, i was taken to the High Court and found liable for a loss in my Post Office accounts, and that was because the assumption of the computer working correctly, and i didnt have the proof or the knowledge or the skills to prove otherwise. Now, newsnight has learnt that in 2020, a group of it and legal experts raised concerns about that presumption with the government, saying that it could lead to further miscarriages ofjustice. The document, signed by several professors and barristers, were sent to alex chalk, the nowjustice secretary, but back then a junior minister, and it spells out a clear argument for a change in the