a British law that aims to prevent important government information from being passed to enemies. People who work for many government departments must ‘sign the Official Secrets Act’, i.e. sign a document saying that they will not discuss their work with anybody who has not also signed the Act. People who break this rule may be sent to prison.
OFFICIAL SECRETS ACT
Meaning of OFFICIAL SECRETS ACT in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005