‘That the rule rests, at least in part, upon public policy is clear from many authorities, and the convenient starting point of the inquiry is the nature of the underlying policy. It is that parties should be encouraged so far as possible to settle their disputes without resort to litigation and should not be discouraged by the knowledge that anything that is said in the course of such negotiations (and that includes, of course, as much the failure to reply to an offer as an actual reply) may be used to their prejudice in the course of the proceedings. They should, as it was expressed by Clauson J. in Scott Paper Co. v. Drayton Paper Works Ltd. (1927) 44 R.P.C. 151, 156, be encouraged fully and frankly to put their cards on the table… The public policy justification, in truth, essentially rests on the desirability of preventing statements or offers made in the course of negotiations for settlement being brought before the court of trial as admissions on the question of liability.’
“what meaning is given to the words ‘without prejudice’ is a matter of interpretation which is capable of variation according to usage in the profession. It seems to me that, no issue of public policy being involved, it would be wrong to say that the words were given a meaning in 1889 which is immutable ever after.” (8) In matrimonial cases there has developed what is now a distinct privilege extending to communications received in confidence with a view to matrimonial conciliation: see In re D. (Minors) (Conciliation: Disclosure of Information) [1993] Fam. 231 , 238, where Sir Thomas Bingham M.R. thought it not “ fruitful to debate the relationship of this privilege with the more familiar head of ‘ without prejudice’ privilege. That its underlying rationale is similar, and that it developed by way of analogy with ‘without prejudice’ privilege, seem clear. But both Lord Hailsham of St. Marylebone and Lord Simon of Glaisdale in D. v. National Society for the Prevention of Cruelty to Children [1978] A.C. 171, 226, 236 regarded it as having developed into a new category of privilege based on the public interest in the stability of marriage”
“a without prejudice letter containing a threat is admissible to prove that the threat was made.”
“ to speak freely about all issues in the litigation both factual and legal when seeking compromise and, for the purpose of establishing a basis of compromise, admitting certain facts.”
“Although, of course, contract and estoppel are quite separate concepts, it appears to me logical and consistent that if ‘without prejudice’ correspondence can be looked at to see if it gives rise to a contract, then such correspondence can also be looked at to see if it gives rise to an estoppel. However, I do not suggest that there is an absolute rule to that effect.”
“What is the meaning of the words ‘without prejudice’ ? I think they mean without prejudice to the position of the writer of the letter if the terms he proposes are not accepted. If the terms proposed in the letter are accepted, a complete contract is established, and the letter, although written without prejudice, operates to alter the old state of things and to establish a new one. A contract is constituted in respect of which relief by way of damages or specific performance would be given.”