Forensic Science Regulator and Biometrics Strategy Bill — House of Commons, 2020-09-25
Topic: Law and Crime
Julie Marson (Conservative, Centre-right): I thank my hon. Friend for relaying that story. We talk about "CSI" and so on, but it goes to prove that there is nothing so fascinating as real life. We cannot escape the fact that real life is sometimes stranger than fiction. My hon. Friend the Member for North East Bedfordshire (Richard Fuller) asked what biscuit it was. It was a Lebkuchen, apparently—the devil is in the detail When we evaluate forensics, we have to establish the evidence, both good and bad, and there have been examples of mistakes. Back in 2012, scientists, lawyers and politicians raised concerns about the quality of forensic evidence testing, arguing that the criminal justice system had become too reliant on lab tests without realising their limitations, which is certainly something we need to guard against. One man became the victim of those mistakes when, in the early hours of one morning, he had a knock at the door from the police, who told him he was being arrested for murder. When he asked what evidence there was against him, the police said that it was his DNA. He spent eight months in jail because of that mistake, before the DNA sample was found to be only a partial match and of very poor quality. Subsequent experts said that he could not be ruled in or out, and he was acquitted. It is therefore important that DNA should absolutely be up to the standards that we would expect of a robust and fair criminal justice system It is not just in the UK that potential issues with forensics can arise. In the US, the misapplication of forensic science in the form of DNA evidence contributed to 45% of wrongful convictions, while false or misleading forensic evidence was a contributing factor in 24% of all wrongful convictions nationally, according to the National Registry of Exonerations. That includes convictions based on unreliable or invalid forensic evidence, misleading expert testimony, mistakes made by practitioners and, in some cases, misconduct by forensic analysts. In some cases, scientific testimony that was generally accepted at the time of a conviction has since been undermined by new advances in scientific disciplines, which can cause real difficulties in getting a case back into court. Changing science is a phenomenon that I know is taking up much of the attention of some colleagues across the House, for different reasons, but it is really important in the context of this Bill It is important to humanise this issue because, as I hope the examples and anecdotes that I have described show, although it can seem very technical, it has real human consequences. There is also public interest in the UK becoming a pioneer in forensics and using it more and more in investigations, which is inevitable. The science is advancing at pace, and there is a new discovery around every corner. However, we should still consider the potential of human error to slip into diagnostics involving forensics. Owing to that interest in our leadership in this field, it is great that this House is looking at how to establish the correct legislative framework to manage those advancements sensibly. I am therefore pleased to speak in favour of the Bill.