 Complete the following phrase:  The Pozo de Banfield is a former dependency of the Investigations Brigade of Banfield and a former Argentine clandestine detention center that operated between November 1974 and October 1978, in the frame of the military dictatorship that ruled the country. This clandestine detention center -that in its time was subordinated to the Mechanized Infantry Regiment of the Argentine Army- had the particularity to start operating as such during the constitutional government of María Isabel Martínez de Perón and nearly 18 months before the 