Instructions for the Use of the Codeword "Discreet"

Document Title	Instructions for the Use of the Codeword "Discreet"
Reference	CAB 158/16
Document Date	17 September 1953
Conflicts	Cold War
Themes	Intelligence Organisation and Administration
Regions	Europe, North America
Countries	Canada, United Kingdom, United States of America
Document Type	Directives, Memoranda
Organisations	Chiefs of Staff, Ministry of Defence, Joint Intelligence Sub-Committee
People	Not Defined

Download PDF (399 KB) Download citation

Keywords

classified documents, security clearance, security, secrecy, British intelligence organisation

Related content

Instructions for the Use of the Marking "U.K. Eyes Only"
1. Review of Intelligence Organisation - Middle East; 2. Grading of Minutes of J.I.C. Meetings; 3. Instructions for Use of "Guard" Procedure; 4. Accommodation for Service Attaches in Japan; 5. Ranks for the Naval and Air Attaches in Cairo
1. Instructions for Handling Certain Information; 2. A "Childs Guide" to Certain Intelligence Organisations; 3. Disclosure of Information about the Armed Forces of the North Atlantic Treaty. Organisations; 4. Russian Interrogation of Service Personnel; 5. Documents Research Section - Germany; 6. Security Films; 7. Security in a Certain Country
1. Leningrad: Intensification of Security Measures; 2. Employment of Cypriot Clerks on Secret and Top Secret Work in G.H.Q. Melf.; 3. British Commander-in-Chief's Mission to the Soviet Forces of Occupation; 4. Official Calls by Soviet and Satellite Attaches; 5. Russian Language Students; 6. Facilities for Members of the Persian and Egyptian Armed Forces; 7. Publication of Information about Research and Development - Draft 'D' Notice No. 5; 8. Fleet Visits to Spain; 9. Application of a Certain Security Classification; 10. Press Interviews - Instructions to Commanders; 11. Permanent Committee on Geographical Names
1. Administration of D.S.I. Overseas Party; 2. Security of Information about Munitions Production; 3. Security Classification of Service Teleprinter Circuits in the United Kingdom in War; 4. Use of Material from the Russian Local Press for Propaganda Purposes; 5. N.A.T.O. Security System. Protection of Stores and Explosives; 7. Examination of the Functioning of the Cosmic Security System in Belgium, Luxembourg, the Netherlands and Italy; 8. Recruitment of French Air Force Personnel via the Foreign Legion
1. Plans for the Evacuation of Military Attaches in the Event of Hostilities; 2. Metric and Cosmic Security System - Progress in Government Departments; 3. Enemy Use of Radio Beacons in the U.K.; 4. Programme of Visits for Foreign Military Attaches in this Country; 5. Publicity Regarding the Call-Up of Class 'Z' Reservists; 6. "Intelligence Digest"; 7. Treatment of Spanish Attaches; 8. Employmnet of German Scientists; 9. Disclosure of Information to Germany; 10. Strategic Guidance for Standing Inter-Departmental Committee on Censorship; 11. Western European Commanders-in-Chief Committee Intelligence Units; 12. Intelligence Information from Germany in a Period of Tension; 13. Circulation of Brixmis Reports; 14. Mr. Douglas Hyde's Book - "I Believed"
1. Transmission of Security - Defence Teleprinter Network; 2. Marking of British Classified Documents; 3. Security of Service Documents - Transit via Egypt; 4. Service Liaison Officers in Singapore and Elsewhere; 5. Policy Towards Soviet and Satellite Service Attaches; 6. Intelligence for Exercise Trident; 7. Employment of Certain Firms on Secret Government Contracts; 8. Reciprocity Towards Russian Naval Attache and Staff; 9. Intelligence from Russian Postal Censorship; 10. J.I.B. Questionnaire; 11. Scandinavian Defence
Preliminary Inspection of the Cosmic Security System in the United Kingdom
1. Future of Intelligence Division, Germany; 2. Intelligence for S.H.A.P.E.; 3. Provision of Intelligence for N.A.T.O.
1. Application of a Certain Security Classification; 2. Vetting of Official Histories - British War Production by Professor H.M. Postan; 3. Beach Reconnaissance; 4. Persian Service Trainees at Courses in the U.K.

0016

Keywords

Taylor & Francis Group content platforms