In 1902, he was elected to the Buenos Aires' legislature, and in 1904, he was elected to Congress by the district of La Boca, becoming the first socialist in the Argentine Congress. In that charge, Palacios created many laws including the "Ley Palacios" against sexual exploitation, and others regulating child and woman labor, working hours and sunday rest. He was elected Senator in 1935 and in 1955 was appointed ambassador in Uruguay. In 1960, Palacios was elected again for Senator and for Deputy (Diputado) in 1963.
Alfredo Valencia Palacios went into hiding for a while but he is now back carrying out his work.
Although this is the first denunciation received by Amnesty International regarding death threats to an AIDS worker, it is a disturbing development in the activities of death squads which allegedly have continued in the country since the end of the war in January 1992.
Amnesty International is urging the authorities to investigate the death threats against Wilfredo Valencia Palacios, to bring to justice those found responsible for the threats and to ensure his physical safety and that of all those involved in work related to education and dissemination of information on the prevention of AIDS.
Palacios was born in Buenos Aires, and studied law at Universidad de Buenos Aires, after which he became a lawyer and taught at the university until he became a dean.
In 1960, Palacios was elected again as Senator, and as Deputy (Diputado) in 1963.