V. Contrary to the previous more or less complimentary references
to Sixta, its present organisation contains two undesirable anachronisms
which were tacitly referred to in German Traffic Analysis in Sixta, see
"...the result of historical growth". (p.45) and "...the methods used
(but not by Sixta) are born of T.A." (p.17). I refer to the organisa-
tion for interception control and the organisation for sorting traffic
both before and after cryptography.
For interception control the organisational division between the
Cover Department within Sixta and the Control Department within Hut
6 is, in fact, an artificial distinction between the knowledge neccessary
for intelligence control and the authority for assigning intercept tasks.
Such a division is useless. And, although from time to time recommenda-
tions for a re-organisation are advanced, because of the energies and
abilities of Capt. Lovett, head of the Cover Department, the functions
of intercept control are so efficiently executed that the need for
reorganisation is not operationally urgent. Nevertheless, I believe
that Lt. Col. Gadd, in planning the post-war T.A. organisation,
regards interception control as exclusively a function of T.A.
For the sorting of traffic both before and after cryptography
Hut 6 includes several departments, chief of which are the Registra-
tion Rooms and Traffic Identification Section. The former collects,
sorts and registers the traffic before the cryptographic attack and
the latter purposes -- namely, providing the knowledge of cipher keys
upon which the registration Rooms depend, directing the Decoding