(a) If the petition was filed pursuant to § 7-1303.04(a), the parent or guardian, or his or her counsel if so represented, shall present evidence which shows beyond a reasonable doubt that the respondent is not competent to refuse commitment.
(b) If the petition was filed pursuant to § 7-1303.04(b-1), the District shall present clear and convincing evidence that shows that the respondent is likely to cause injury to others as a result of an intellectual disability if allowed to remain at liberty.