Dstl Chief Executive Gary Aitkenhead (R) speaks as Britain's Queen Elizabeth II (C) and Britain's Prince William, Duke of Cambridge, (L) prepare to unveil a plaque to officially open the new Energetics Analysis Centre at the Defence Science and Technology Laboratory (Dstl) at Porton Down science park near Salisbury, southern England, on October 15, 2020. - The Queen and the Duke of Cambridge visited the Defence Science and Technology Laboratory (Dstl) where they were to view displays of weaponry and tactics used in counter intelligence, a demonstration of a Forensic Explosives Investigation and meet staff who were involved in the Salisbury Novichok incident. Her Majesty and His Royal Highness also formally opened the new Energetics Analysis Centre. (Photo by Ben STANSALL / POOL / AFP)