The Office of Public Safety (OPS) was a US government agency, established in 1957 by US President Dwight D. Eisenhower to train police forces of America's allies. It was officially part of USAID (US Agency for International Development), and was close to the Central Intelligence Agency (CIA). Police-training teams were sent to South Vietnam, Iran, Taiwan, Brazil, Uruguay and Greece. Courses were held in French, Spanish and English. According to a 1973 document revealed in the Family jewels CIA documents, around 700 police officers were trained a year, including in handling of explosives. It was dissolved in 1974.
The United States has a long history of providing police aid to Latin American countries. In the 1960s the U.S. Agency for International Development's (USAID) Office of Public Safety (OPS) provided Latin American police forces with millions of dollars' worth of weapons and trained thousands of Latin American police officers. In the late 1960s, such programs came under media and congressional scrutiny because the U.S.-provided equipment and personnel were linked to cases of torture, murder and "disappearances" in Argentina, Brazil, and Uruguay.
In Washington, D.C., the Office of Public Safety had remained immune to public embarrassment as it went about two of its chief functions: allowing the CIA to plant men with the local police in sensitive places around the world; and after careful observation on their home territory, bringing to the United States prime candidates for enrollment as CIA employees. The OPS's director in Washington, Byron Engle, was close to the CIA.