(a) When on the motion for appointment of an interpreter by a party or on the motion of the court, in any proceeding under this chapter, the court determines that the child, the child's parent or guardian, or a witness does not understand and speak English, an interpreter must be sworn to interpret for the person. Articles 38.30(a), (b), and (c), Code of Criminal Procedure, apply in a proceeding under this chapter. A qualified telephone interpreter may be sworn to provide interpretation services if an interpreter is not available to appear in person before the court.
(b) In any proceeding under this chapter, if a party notifies the court that the child, the child's parent or guardian, or a witness is deaf, the court shall appoint a qualified interpreter to interpret the proceedings in any language, including sign language, that the deaf person can understand. Articles 38.31(d), (e), (f), and (g), Code of Criminal Procedure, apply in a proceeding under this chapter.