The Secret History of MI6 - Keith Jeffery [136]
Sinclair acted swiftly to find a new combined headquarters closer to Whitehall. In the spring of 1926 he moved both SIS and GC&CS into offices in Broadway Buildings, a two-year-old nine-storey office block opposite St James’s Park Underground station, conveniently located between the headquarters of the London Missionary Society and the Old Star and Crown pub. At the end of September 1926, the Passport Control head office moved into 21 Queen Anne’s Gate, adjoining Broadway Buildings, and an internal passageway was constructed linking the two buildings. Since it was ‘essential that the connection between the P.C. Office and the S.I.S. Office be kept secret’, Sinclair instructed that SIS staff should ‘in no circumstances use the Queen Anne’s Gate entrance’. Initially SIS and GC&CS occupied only the third, fourth and fifth floors, though they steadily expanded until, shortly before the Second World War, they took over the whole building.
Sinclair, too, had a flat in Queen Anne’s Gate with a link to SIS so that he could move unobserved between his residence and his office on the fourth floor of Broadway Buildings. Here visitors were required to knock on a hatch, after which they might be admitted to the Chief ’s outer office by one of his secretaries. A green light over the door of the inner office indicated whether Sinclair was engaged or not. For the ordinary visitor, the experience had an ineffable air of mystery. The interwar Chairman of the Conservative Party, J. C. C. Davidson, long afterwards recalled (and perhaps embellished) one such occasion. Sinclair’s secretary, the formidable Miss Pettigrew, had asked him to come to see the Chief. ‘When I enquired how I should come, she told me through the office of the sanitary engineer. I went to that entrance and passed through the rooms with lavatory pans and baths etc., and through a double door.’ Met by Miss Pettigrew, Davidson was ushered ‘into a room that was quite out of this world . . . There was a mother-of-pearl handled pistol on a round table in the middle, a cigar box, a Turkish carpet with so deep a pile that you nearly got lost in it, and a handsome desk behind which sat “C”.’32
Relations with other agencies
One issue which surfaced during the 1925 Secret Service Committee proceedings was that of SIS’s domestic activities. Reinforcing his argument for the creation of a unified secret service, Sinclair told the committee that it was ‘impossible to draw the line between espionage and contre-espionage, for both were concerned solely with foreign activities’. MI5, for example, ‘looked to him to obtain abroad information relating to spies working in the United Kingdom and were then supposed to follow it up in this