(1) The patient shall be entitled to be heard by the court, whether in person or through a barrister or solicitor or through some other person nominated by the patient, and to call witnesses, and to cross-examine any witness called by any other party to the proceedings.
(2) Without limiting anything in subsection (1), where the patient is present and appears capable of addressing the court, the court shall give the patient an opportunity to do so; and, in any such case, the court may, if it thinks it desirable to do so, require any parent or guardian of the patient, or any other person with whom the patient is living, or any barrister or solicitor representing any such parent, guardian, or other person, to withdraw from the court while the patient is addressing the court.
(3) Any person referred to in section 19(6) shall be entitled to be heard by the court, whether in person or through a barrister or a solicitor, and to call witnesses, and to cross-examine any witness called by any other party to the proceedings.