Section 765 - Time for setting adjudication hearingA. If the child is in continued custody pursuant to Chapter 4 of this Title, the adjudication hearing shall commence within thirty days of the appearance to answer the petition. If the child is not continued in custody, the adjudication hearing shall commence within ninety days of the appearance to answer the petition.B. For good cause, the court may extend such period.C. If the hearing has not been commenced timely, upon motion of the child, the court shall release a child continued in custody and may dismiss the petition.