More from Privacy International and International Spying by the FVEY Five Eyes community.
MI5 and MI6 may be circumventing legal safeguards when they share bulk datasets with foreign intelligence services and commercial partners, a court has been told.
https://www.theguardian.com/technology/2017/oct/17/uk-spy-agencies-intelligence-mi5-mi6-law-data-sharing-tribunal
Top Secret Document UKUSA (2010)
Document that formalised 'special relationship' with the US
https://www.nationalarchives.gov.uk/ukusa/
https://www.telegraph.co.uk/news/worldnews/northamerica/usa/7852136/Document-that-formalised-special-relationship-with-the-US.html