From early 2000 the Institute of National Remembrance started to acquire documents from the archives of The Ministry of the Interior and Administration (Ministerstwo Spraw Wewnętrznych i Administracji), the Internal Security Agency (ABW – Agencja Bezpieczeństwa Wewnętrznego), Office for State Protection (UOP - Urząd Ochrony Państwa), Police Archives, Military Information Services (WSI - Wojskowe Służby Informacyjne), Polish Border Guard, Prison Guard, Ministry of National Defence (Ministerstwo Obrony Narodowej) and others. Most of those acquisitions were hasty and done without preparations, so the process of cataloguing and managing the files is still ongoing.