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…