A file consisting of a report by Sir Norman Brook into the state of the secret intelligence and security services. The report summarises the general state of efficiency of the intelligence gathering, counter-intelligence and security services, their allocation of resources, and the relationship between them. Topics of discussion also include the finances and funding of the intelligence services; the role and work of each service, including examples such as the gathering of intelligence about atomic energy; ministerial responsibility for and control of the services; security of communications and the interception of enemy signals; and recommendations for the future organisation of the services.