Campbell v MGN [2004] UKHL 22 http://www.publications.parliament.uk/pa/ld200304/ldjudgmt/jd040506/campbe-1.htm
This is the leading case on the concept of confidentiality.
R v Department of Health ex p Source Informatics Ltd [2001] QB 424 (CA) http://www.bailii.org/ew/cases/EWCA/Civ/1999/3011.html
This case is the leading authority of whether anonymous information is confidential.
H (A Healthcare Worker) v Associated Newspapers Ltd and N (A Health Authority) [2002] LLMLR 210 (CA) http://www.bailii.org/ew/cases/EWCA/Civ/2002/195.html
A consideration of how to balance protection of confidentiality and the public good.
W v Egdell http://www.bailii.org/ew/cases/EWCA/Civ/1989/13.html
An example of when breach of confidence is justified by the public good.
A, B, C v St George’s [2015] EWHC 1394 (QB) http://www.bailii.org/ew/cases/EWHC/QB/2015/1394.html
A discussion of when genetic information must be disclosed.