UVNS is not a security and intelligence agency but a body of the security and intelligence system competent for expert and administrative support to the National Security Council and the Council for the coordination of security services and for reports analysis and expert oversight of the work of security and intelligence agencies. UVNS also has a significant role as the Croatian National Security Authority.

UVNS is also competent for reports analysis, evaluating work goals and the oversight of the work of security and intelligence agencies. 

UVNS is not to perform tasks which, pursuant to Security and Intelligence system Act , are under the competence of security and intelligence agencies and is not to apply measures which only security and intelligence agencies are authorized to apply.