Practice Relating to Rule 100. Fair Trial Guarantees
Section B. Trial by an independent, impartial and regularly constituted court
Colombia’s Operational Law Manual (2009) states:
[Article 3 common to the four 1949 Geneva Conventions] establishes the conduct that is not permitted in relation to protected persons (although it should be noted that most of this conduct is also prohibited in relation to persons participating in hostilities):
(iii) The passing and and carrying out of sentences without prior judgment pronounced by a regularly constituted court affording all the judicial guarantees recognized as indispensable by civilized peoples.
In 2005, in the Constitutional Case No. C-203/05, the Plenary Chamber of Colombia’s Constitutional Court stated:
As members of the civilian population affected by internal armed conflicts, children and adolescents have the right to respect for the fundamental guarantees granted to all persons not actively participating in hostilities, as established by Article 3 common to the  Geneva Conventions … In accordance with this Article, in cases of non-international armed conflicts in the territory of one of the Parties, each party to the conflict shall be bound to apply certain minimum guarantees without affecting their legal status as parties to the conflict, including: (1) Persons taking no active part in the hostilities shall be treated humanely in all circumstances without adverse distinction based on discriminatory criteria; (2) To this end, the following acts are prohibited at any time and in any place whatsoever with respect to the above-mentioned persons (including children): ... (d) The passing of sentences and the carrying out of executions without previous judgment pronounced by a regularly constituted court affording all the essential judicial guarantees.