SAVAK (Persian: ?????, short for ?????? ??????? ? ????? ???? Sāzemān-e Ettelā'āt va Amniyat-e Keshvar, Organization of Intelligence and National Security) was the secret police, domestic security and intelligence service established by Iran's Mohammad Reza Shah with the help of the United States' Central Intelligence Agency (the CIA).SAVAK, Library of Congress Country Studies.