It became more popular after World War II as a means of "stealthy torture," since it makes public testimony more difficult; the victim can testify only with difficulty as to who did what to them.
[8] In the 1950s, hooding was used in South Africa[9] and French Algeria;[10] in the 1960s, in Brazil and Franco's Spain, in the 1970s, in Northern Ireland, Chile, Israel,[3] and Argentina; and since then in a great number of countries.
[8] In some cases, hooding was accompanied by white noise, such as in Northern Ireland;[11] such techniques used by British troops followed up on research done in Canada under the direction of Donald O.
[12] After the 1989 attack on La Tablada Regiment, during the presidency of Raúl Alfonsín, the military reacted violently and again hooded prisoners; its methods were called "an immediate return to the methodology used during the dictatorship.
"[13] Battalion 3-16, the unit of the Honduran Army which carried out assassinations and tortured political opponents in the 1980s, was trained by interrogators from the CIA and from Argentina, and made up in part of graduates of the School of the Americas.
"[3] According to Amnesty International's influential report Torture in the Eighties, hooding and other forms of ill-treatment became widespread again after the resignation of Menachem Begin in 1984.
[18][19] In the United Kingdom, hooding, one of the so-called "five techniques," was used as a means of interrogation during The Troubles, the period of violent conflict in Northern Ireland from 1966 to 1998, and notably so during Operation Demetrius.
[33] According to a 1989 report by the Servicio Paz y Justicia Uruguay, hooding was the most common form of torture practiced in military and police centers in the 1970s.