(a) Once a child has been adjudicated dependent, delinquent, or in need of supervision, jurisdiction of the juvenile court shall terminate when the child becomes 21 years of age unless, prior thereto, the judge of the juvenile court terminates its jurisdiction by explicitly stating in a written order that it is terminating jurisdiction over the case involving the child. Nothing in this section is intended to affect the initial and continuing jurisdiction of juvenile courts over cases other than delinquency, dependency, or in need of supervision cases as provided in Sections 12-15-114, 12-15-115, 12-15-116, or any other statute by which jurisdiction was initially lawfully invoked.

(b) The jurisdiction of the juvenile court shall terminate when the child is convicted or adjudicated a youthful offender as provided in Section 12-15-203(i) and Section 12-15-204(b). If a person already under the jurisdiction of the juvenile court is convicted or adjudicated a youthful offender in a criminal court of a crime committed at the age of 18 or older, the conviction or adjudication shall terminate the jurisdiction of the juvenile court.

(c) In any case over which the juvenile court has jurisdiction, the juvenile court shall retain jurisdiction over an individual of any age to enforce or modify any prior orders of the juvenile court unless otherwise provided by law and also shall retain jurisdiction for the enforcement or modification of any prior orders of the juvenile court requiring the payment of fines, court costs, restitution, or other money ordered by the juvenile court until paid in full.

(d) For purposes of enforcing any order of the juvenile court requiring the payment of fines, court costs, restitution, or other money ordered by the juvenile court, the remedies with regard to punishment for contempt, including incarceration in jail of individuals 18 years of age or older, shall be available to the juvenile court.