In a missing person case, as a matter of cooperation, the Federal Bureau of Investigation (FBI) will, at the request of a state or local law enforcement agency, make available the facilities of the FBI Identification Division and the FBI Laboratory.
Information pertaining to certain categories of missing persons, including missing children, may be entered into the missing person file of the FBI operated National Crime Information Center (NCIC) by the local law enforcement agencies and, since passage of the Missing Children Act (Pub. L. 97-272, amending, 28 U.S.C. § 534), by parents of missing children if the local law enforcement agency will not do so.
[cited in JM 9-60.100]