Hut 6 tasks and staff, headed by WG Welchman; policy paper on interception of E;...

Hut 6 tasks and staff, headed by WG Welchman; policy paper on interception of E; warning to staff by AGD on dangers of careless talk; liaison with Finns, Lt Col JH Tiltman's report of his visit to Finland Mar 1-11 and his agreement to provide them with Sigint equipment; Y Committee (YC) minutes, Tiltman to be recruiting officer in chief for Services' Sigint recruits; traffic blanketing requirements of Diplomatic and Commercial Sections as submitted to cable censors; support from British Tabulating Machine Company (BTM) for GCCS; Professor TSR Boase to leave BP on Mar 27 for temporary detachment to Cairo on RAF Sigint duties; details of Canadian, South African and French Sigint organisations; French to establish permanent Naval Sigint Mission at BP; Naval Intelligence Department (NID) 9 paper on German illicit spy network, with comments by HC Kenworthy; Y Subcommittee minutes, cover of German illicit morse stations overseas; German illicit activity in South Africa and Portuguese East Africa; MI-8 paper on potential leakage to Germany of British radio communications; War Office (WO) visits to BP and access to Sigint reports, listing of cleared officers; congratulatory message to BP from Director of Naval Intelligence (DNI); minutes of India/ME Intelligence Conference held in Cairo, Apr 3-8, cover of Russian communications; GCCS disagreements with MI-8 and DNI; build up of Services' Sigint Centre in Cairo; details of Italian cypher systems

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