[3] On January 26, 1961, President Manuel Prado Ugarteche created the National Intelligence Service (SIN) by Supreme Decree in a stage characterised by the triumph of the Cuban revolution, the phenomenon of unconventional war, and the process of recent modernisation carried out by the Peruvian Army.

[4] During the government of Juan Velasco Alvarado, the SIN was related to the KGB, the intelligence agency of the Soviet Union.

With the support of the SIN, the KGB carried out actions in Peru against the CIA and against the embassies of Mexico, the United States and Chile present in the Peruvian capital.

[9] Under Montesinos, the agency was surrounded by a halo of mystery, as it was considered the main responsible for cases of torture, murders, kidnappings and acts of repression against opponents of Fujimori's government.

Former employees of the headquarters of the Peruvian Army, known locally as "The little Pentagon", reported that a sub-basement existed where political opponents were imprisoned, tortured and killed.

27479 of June 5 ultimately created the National Intelligence Council (Spanish: Consejo Nacional de Inteligencia, CNI) and the National Directorate of Strategic Intelligence (Spanish: Dirección Nacional de Inteligencia Estratégica, DINIE), themselves dissolved through Law No.