The British had become aware that someone had been misinforming the Germans, and realised the value of this after the wasted resources attempting to hunt down a non-existent convoy reported to them by Pujol. He was moved to Britain on 24 April 1942 and given the code name "Bovril", after the drink concentrate. However, after he passed the security check conducted by MI6 Officer Desmond Bristow, Bristow suggested that he be accompanied by MI5 officer Tomás Harris (a fluent Spanish speaker) to brief Pujol on how he and Harris should work together. Pujol's wife and child were later moved to Britain.