One of the problems is that the UK legal system has a presumption that computers are reliable. They are assumed to be working properly unless proved otherwise, which shifts the burden of proof on the person trying to claim that they are not working properly.
Many commentators are saying that this presumption should be changed:
https://www.theguardian.com/uk-news/2024/jan/12/update-law-o...
https://www.forbes.com/sites/emmawoollacott/2024/01/15/law-o...