358 • MI8
MI8.The military intelligence designation of the Radio Security Ser-
vice during World War II. During World War I MI8 consisted of:
- MI8(a), the War Office section dealing with signals intelligence pol-
icy and wireless - MI8(b), the section dealing with the General Post Office and the
interception of commercial cable traffic - MI8(c), the section responsible for the distribution of intelligence
acquired from censorship - MI8(g), the section responsible for liaison with private cable car-
riers
MI9.MI9(a) was the military intelligence designation during World
War II assigned to the section responsible for the interrogation of
enemy prisoners of war, headed by Colonel Norman Crockatt (DDMI
P/W) and assisted by MajorA. P. Rawlinson. The unit was later
transformed into theCombined Services Detailed Interrogation
Centre, in November 1941 redesignatedMI19. Other MI9 subsec-
tions during World War II included:
- MI9(b), the Escape and Evasion Service, headed by ColonelJ. M.
Langley - MI9(b), for liaison with the services and debriefing of escaped Al-
lied PoWs at the Great Central Hotel at Marylebone Station - MI9(d), for training, mainly at Military Intelligence School 9 at
Highgate - MI9(x), for planning escapes
- MI9(y), for code systems
- MI9(z), for clandestine escape tools
MI10.The military intelligence designation of the section collating ar-
tillery and gas intelligence.
MI11.The military intelligence designation of the Field Security Po-
lice.
MI12.The military intelligence designation in the War Office for the
section responsible for liaising with the wartime censorship authori-
ties.