Covert human intelligence sources : code of practice /
Great Britain.Home Office.
Pursuant to section 71 of the Regulation of Investigatory Powers Act 2000. Commencement: this code applies to every authorisation of the use or conduct by public authorities of covert human intelligence sources carried out under Part II of the Regulation of Investigatory Powers Act 2000. Supersedes previous edition (2010, ISBN 9780113413379).