In the jurisdiction of the Servicio Penitenciario Federal (SPF), La Penitenciaría Nacional was an imposing building on Las Heras Avenue (named in memoriam of Gral.
Juan Gregorio de Las Heras), in the Palermo neighborhood of Buenos Aires, Argentina, until it was demolished in 1962.
The city called for "Plans and Budgets for the Construction of a Jail Building", in 1869 by decree, with the penal standards of the time; the attempt was to fulfill the constitutional rules of 1853: Art.
He studied the prisoners and their physical characteristics, a system of reward and punishment was set up, and the silence regime was eliminated.
With time the norms were made flexible; visits to intimates began, the visitor was allowed to say their name to the prisoners, and the shackles and striped uniforms ceased to exist under the direction of Roberto Pettinato, in the government of Juan Perón.