"The Commission considers that the act of ratifying the American Convention presupposes acceptance of the obligation of not only respecting the observance of rights and freedoms recognized in it, but also guaranteeing their existence and the exercise of all of them. It is these elements of political rights presented in item 5 of this document that the State commits itself not only to respect but “guarantee their full and free exercise,” according to Article 1.1 of the Convention. It must be pointed out that the Inter-American Court of Human Rights in its Decision of July 29, 1988, in the case of Velásquez Rodríguez, has stated that Article 1.1 of the Convention: Article 1 (1) is essential in determining whether a violation of the human rights recognized by the Convention can be imputed to a State Party. In effect, that article charges the States Parties with the fundamental duty to respect and guarantee the rights recognized in the Convention. Any impairment of those rights which can be attributed under the rules of international law to the action or omission of any public authority constitutes an act imputable to the State, which assumes responsibility in the terms provided by the Convention. "