It has given the American law of evidence a much greater accessibility and therefore flexibility of application. (slaw.ca)
A comprehensive statement of the existing law of evidence should be developed immediately — opinion is split on whether it should be a legislated or non-legislated statement (which might be an authoritative analytical text - book or «Canadian Wigmore»). (slaw.ca)
An exception to this rigorous rule might have been the duty to give evidence in court concerning a crime which a priest learned about in the confessional; but as the civil law of evidence developed, it included a privilege for the priest against being compelled to reveal anything told to him under the «seal of the confessional.» (religion-online.org)