On 9 March 2021, a team from the Department of Borders (DIRFRON) headed by its director, Carlos Dettleff, accompanied the Argentinean Ambassador in Chile, His Excellency Rafael Bielsa, in his official visit to the premises of the Chilean border post, Los Libertadores, which forms part of the system of border posts between Chile and Argentina known as Paso Sistema Cristo Redentor. The purpose of this visit was to get to know the infrastructure, the operations, and border control processes in the Chile-Argentina border.