27. On any reference under article 20(1) or 24 the tribunal may, if they think fit, appoint a person having special knowledge or experience in relation to the subject matter of the reference to sit with them as assessor.
27. On any reference under article 20(1) or 24 the tribunal may, if they think fit, appoint a person having special knowledge or experience in relation to the subject matter of the reference to sit with them as assessor.