Emergency communications district boards organized under T.C.A. § 7-86-105 are expressly declared immune from any claim, complaint or suit that relates to or arises from any conduct of the affairs of the board, except in cases of gross negligence of the board or its members.  Immunity also extends to any employee of the district provided that the employees "shall attain and maintain training requirements as may be required by law." T.C.A. § 29-20-108.