D Branch MI5 1938-53
Protective security
D Branch of MI5 was re-established in 1938 with responsibility for protective security in munitions, aircraft factories and dockyards (ref 1, p.134). For the role of this branch at other periods see the page for the 1990s D Branch.
Personnel
Directors
H. I. Allen c.1941 (ref 1, p.134).
References
Ref 1: Christopher Andrew, Defence of the Realm, The Authorize…
Keep reading with a 7-day free trial
Subscribe to Tom Griffin on intelligence history to keep reading this post and get 7 days of free access to the full post archives.