Britain's Prince William, Duke of Cambridge, (R) presents British Army Colonel Mike Duff (L), Assistant Commander South West and deputy joint commander for the decontamination of Salisbury following the 2018 Novichok incident, with the Firmin Sword of Peace for the South West department's work on the Novichok incident, during the Duke's visit to 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)