Finalised proofs of evidence or witness statements prepared for service on an opposing party do not attract litigation privilege, and filing and service of such documents constitutes a complete waiver of any privilege that may have existed; the Harman implied undertaking, not privilege, is the appropriate mechanism for protecting such documents from collateral use.
The full text is available to signed-in members, including the 29 later cases that cite this judgment.
5 of the 29 citing cases carry a classified treatment. How each court treated it is available to signed-in members.