23 competitor, i.e., to gain an advantage over the holder of such information, may generally be regarded as con¬ fidential " and added, "I consider that the same consi¬ derations apply to cases where trade information is ob¬ tained from sources other than through an employee." (See at 577 B-C) . Having quoted from the judgment of LORD GREENE MR in the Saltman Engineering case, he indicated that he was "applying these principles to the present case". In my opinion, the learned judge erred in this regard. Where nothing is said between the parties to a communication in regard to confidentiality, the crite¬ rion referred to will be relevant to the question whether it was confidential. But it is of the essence that the communication should be of secret or private matters. be confidential, the information must "have To