To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321
Current UK threat level: SEVERE Read more about threat levels >>

Brigadier Oswald Allen Harker (Director 1940-41)

Portrait of Brigadier Oswald Allen HarkerBrigadier Oswald "Jasper" Harker (1886–1968) replaced Sir Vernon Kell as Director of the Security Service in June 1940.

Harker's career began in the Indian Police, for which he worked for fourteen years. He rose to become deputy commissioner at Bombay before being invalided home in 1919. He joined the Service in 1920 on loan from the India Office and in due course became the head of the Service's "B" division, which was responsible for 'investigations and inquiries'.

He was replaced by Sir David Petrie in 1941 but stayed on as the Service's new Deputy Director General. He retired in 1946.

Fact or Fiction?
Thames House has a miniature railway.

True False

Latest News

view ALL News

MI5 publishes 2018 Gender Pay Gap report

Today MI5, along with SIS and GCHQ, has published its Gender Pay Gap report for the first time.

Read Full Article ›

Celebrating Vote 100

MI5 is celebrating the centenary of women’s right to vote with a number of events. In particular, our gender network is...

Read Full Article ›