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Colombia
Practice Relating to Rule 100. Fair Trial Guarantees
Section K. Public proceedings
Colombia’s Instructors’ Manual (1999) provides: “Anybody who is accused has the right to …a due public trial”. 
Colombia, Derechos Humanos & Derecho Internacional Humanitario – Manual de Instrucción de la Guía de Conducta para el Soldado e Infante de Marina, Ministerio de Defensa Nacional, Oficina de Derechos Humanos, Fuerzas Militares de Colombia, Santafé de Bogotá, 1999, p. 11.
Colombia’s Criminal Procedure Code (2004) states:
In the course of criminal proceedings, once a person has been charged with an offence, he or she has the right …:
k) to have a public … trial. 
Colombia, Criminal Procedure Code, 2004, Article 8(k).
The Code also states:
The proceedings are public. In addition to the parties, access must be given to the media and the general community. Exceptions must be made in cases in which the judge considers that the public nature of the proceedings poses a danger to the victims, jurors, witnesses, experts, and other interveners if national security is affected, if minors who have to intervene would be exposed to psychological harm or if the success of the investigation is seriously compromised. 
Colombia, Criminal Procedure Code, 2004, Article 18.