The Fraud Detection and National Security Directorate (FDNS) safeguards the integrity of the nation’s lawful immigration system by leading USCIS’ efforts to combat fraud, detect national security and public safety threats, and maximize law enforcement and Intelligence Community partnerships.

FDNS has four mission essential functions.

1. Detect, deter, and administratively investigate immigration-related fraud.
2. Establish guidance and oversee processes for identifying, reviewing, vetting, and adjudicating cases involving national security concerns.
3. Develop and implement efficient screening policies, programs, and procedures.
4. Serve as USCIS’ primary conduit for information sharing and collaboration with law enforcement and the Intelligence Community.

View the FDNS brochure (PDF, 5.53 MB).

Headquarters FDNS develops policies and procedures; sets priorities, goals, and objectives; and provides resources to support FDNS operations in the field.

FDNS officers serve in USCIS service centers, asylum offices, and domestic and international field offices. Some FDNS immigration officers work in other government agencies.

Protecting the integrity of the immigration process is a priority for USCIS.  Visit the USCIS Report Fraud page for information on how to report fraud of immigration benefits, such as marriage or asylum fraud, and employment-based visa violations.