All memoranda, work notes or products, or case files of the dispute resolution center are confidential and privileged and are not subject to disclosure in any judicial or administrative proceeding unless the court or administrative tribunal determines that the materials were submitted by a participant to the center for the purpose of avoiding discovery of the material in a subsequent proceeding. Any communication relating to the subject matter of the resolution made during the resolution process by any participant, mediator, or any other person is a privileged communication and is not subject to disclosure in any judicial or administrative proceeding unless all parties to the communication waive the privilege. The foregoing privilege and limitation on evidentiary use does not apply to any communication of a threat that injury or damage may be inflicted on any person or on the property of a party to the dispute, to the extent the communication may be relevant evidence in a criminal matter. (Ord. 4885 § 2, 1996.)