The Earl of Effingham (Con)

My Lords, I thank the noble Baroness, Lady Kidron, for tabling her amendment. We understand its great intentions, which we believe are to prevent another scandal similar to that of Horizon and to protect innocent people from having to endure what thousands of postmasters have undergone and suffered. However, while this amendment would make it easier to challenge evidence derived from, or produced by, a computer or computer system, we are concerned that, should it become law, this amendment could be misused by defendants to challenge good evidence. Our fear is that, in determining the reliability of such evidence, we may create a battle of the expert witnesses. This will not only substantially slow down trials but result in higher costs. Litigation is already expensive, and we would aim not to introduce additional costs to an already costly process unless absolutely necessary. From our perspective, the underlying problem in the Horizon scandal was not that computer systems were critically wrong or that people were wrong, but that the two in combination drove the terrible outcomes that we have unfortunately seen. For many industries, regulations require firms to conduct formal systems validation, with serious repercussions and penalties should companies fail to do so. It seems to us that the disciplines of systems validation, if required for other industries, would be both a powerful protection and considerably less disruptive than potentially far-reaching changes to the law.