(a) If a child who is on probation in one county spends substantial time in an adjoining county, including residing, attending school, or working in the adjoining county, the juvenile probation departments of the two counties may enter into a collaborative supervision arrangement regarding the child.
(b) Under a collaborative supervision arrangement, the juvenile probation department of the adjoining county may authorize a probation officer for the county to provide supervision and other services for the child as an agent of the juvenile probation department of the county in which the child was placed on probation. The probation officer providing supervision and other services for the child in the adjoining county shall provide the probation officer supervising the child in the county in which the child was placed on probation with periodic oral, electronic, or written reports concerning the child.

(c) The juvenile court of the county in which the child was placed on probation retains sole authority to modify, amend, extend, or revoke the child’s probation.