Forensic Science Regulator and Biometrics Strategy Bill

My hon. Friend is making a compelling speech and he is absolutely right to point out the vital importance of forensic science in the detection, prevention and prosecution of crime. Does he agree that we must also be careful not to see forensic science as a silver bullet for crime solving but rather as a tool for the police? I am reminded of a story that you will remember well, Madam Deputy Speaker, of the Night Stalker, a gerontophile who plagued south and south-east London for some 25 years, breaking into people’s homes, often those of elderly people, and assaulting and often raping them. The Metropolitan police pursued this man for many years. He was active for a while, then disappeared for a while, then came back and was active again. Enormous amounts of active effort was put into pursuing him on a forensic basis. DNA samples were gathered, analysis was done, and they identified where in the world this person might have come from. Other people from similar demographics were asked to come forward and volunteer their DNA. Still, they failed to find him until there was a rotation of the investigating officer. A new person was put in charge of the investigation who worked out that the police were not actually trying to catch a rapist. They were trying to catch a burglar who happened to rape at the same time. That change in investigative posture meant that they caught him within two weeks. Although forensics can be vital, sometimes they are not the silver bullet people hold them out to be.