In any case in which the welfare of a child is in issue, the court may, on application of any party or on its own motion, appoint a volunteer Court Appointed Special Advocate (CASA), who shall act on the court's behalf to undertake certain activities in furtherance of the child's interests, but who shall not supplant or interfere with the role either of counsel for child appointed pursuant to R. 5:8A or guardian ad litem appointed pursuant to R. 5:8B. Any such CASA shall be a volunteer associated with a court-authorized or court-operated CASA program. The duties and activities of a CASA program and all of its volunteers shall be in accordance with guidelines established by the Administrative Director of the Courts.