N.J. Stat. Ann. § 18A:36-25.5

2. The Legislature finds and declares that when a child is abducted, the first few hours are absolutely critical in the recovery process; that the unexplained absence of a pupil from school can be a significant early warning sign of abduction; that although stranger abductions are rare, an efficient system of communication between school administrators and parents regarding a student's unexplained absence must be incorporated by our public school districts into their attendance systems; and that the benefits of this requirement will be realized even if only one child is saved as a result.