W.Va. Trial. Ct. R. 25.12
Mediation shall be regarded as confidential settlement negotiations, subject to W.Va. R.Evid. 408. A mediator shall maintain and preserve the confidentiality of all mediation proceedings and records. Confidentiality as to opposing parties within a mediation session shall be maintained in a manner agreed upon by the parties and mediator. For example, all information may be kept confidential unless disclosure is specifically authorized by the party, or, all information may be shared unless specifically prohibited by the party. A mediator may not be subpoenaed or called to testify or otherwise be subject to process requiring disclosure of confidential information in any proceeding relating to or arising out of the dispute mediated.
W.Va. Trial. Ct. R. 25.12