A volume of meeting minutes of the Joint Intelligence Sub-Committee (JIC). The JIC was formed of representatives from the intelligence services, the armed services, and the Foreign Office. Its purpose was to assess military, security, and foreign policy requirements and coordinate Britain’s intelligence organisations accordingly. The JIC members discussed a vast range of international and domestic issues in their meetings. In this file, subjects documented include methods of deceiving the enemy, including rumours and troop movements; security and liaison plans for the Norwegian Campaign, including cover plans and arrangements for liaison with the local government and civilian population; plans for the gathering of naval intelligence; methods of disrupting enemy communications by cutting undersea cables; and the monitoring of telephone communications between the United Kingdom and Ireland.