The police and school authorities and other public officials and agencies shall, upon the request of the department, promptly make available to such department all pertinent information in their possession with respect to a child whose legal custody is placed in or who is under the supervision of the department pursuant to this Chapter or the provisions of R.S. 13:1561 through R.S. 13:1809, both inclusive.
La. R.S. § 46:1918