(a) During a disposition hearing under Section 54.04, a child may:
(1) admit having engaged in delinquent conduct or conduct indicating a need for supervision for which the child has not been adjudicated; and
(2) request the court to take the admitted conduct into account in the disposition of the child.
(b) If the prosecuting attorney agrees in writing, the court may take the admitted conduct into account in the disposition of the child.
(c) A court may take into account admitted conduct over which exclusive venue lies in another county only if the court obtains the written permission of the prosecuting attorney for that county.
(d) A child may not be adjudicated by any court for having engaged in conduct taken into account under this section, except that, if the conduct taken into account included conduct over which exclusive venue lies in another county and the written permission of the prosecuting attorney of that county was not obtained, the child may be adjudicated for that conduct, but the child's admission under this section may not be used against the child in the adjudication.