The Foreign Office is mentioned throughout the course of Lethal White as the former workplace of Aamir Mallik, Della Winn’s current assistant. Also, it’s believed that someone in the Foreign Office may have incriminating photographs that could pose a threat to Jasper Chiswell.
“’Photos at the Foreign Office. What the hell can they show that would incriminate Chiswell?’” (Lethal White, Chapter 20)
Find more information about the Foreign Office here and find it on the map below.