What must follow up all III queries run with the purpose code "X"?

When conducting a III (Interstate Identification Index) query using the purpose code "X," which is designated for criminal justice investigations, it is essential to follow up the query with fingerprints. This requirement ensures that the identification process is accurate and that the information obtained from the query is corroborated with a reliable biometric reference. Fingerprints serve as a unique identifier for individuals, providing a means to confirm identities through the biometric data associated with their criminal history.

In the context of law enforcement and criminal justice, this process is critical for maintaining the integrity and accuracy of information used within investigations and legal proceedings. Similarly, this practice facilitates compliance with legal standards and protocols when accessing sensitive information within the NCIC system.