Règle correspondante
Practice Relating to Rule 103. Collective Punishments
Colombia’s Operational Law Manual (2009) states:
For its part, the [1977] Additional Protocol II to the [1949] Geneva Conventions adds to these prohibitions collective punishments … and threats to commit any of the foregoing acts. All these prohibitions, even if more specific [in Additional Protocol II], can also be derived from common article 3 [to the Geneva Conventions]. 
Colombia, Manual de Derecho Operacional Manual FF.MM. 3-41 Público, Primera Edición 2009, Comando General de las Fuerzas Militares, aprobado por el Comandante General de las Fuerzas Armadas por Disposición Número 056, 7 December 2009, p. 42.
[footnote in original omitted]
In 1995, Colombia’s Constitutional Court held that the prohibitions contained in Article 4(2) of the 1977 Additional Protocol II practically reproduced specific constitutional provisions. 
Colombia, Constitutional Court, Constitutional Case No. C-225/95, Judgment, 18 May 1995.
In 2007, in the Constitutional Case No. C-291/07, the Plenary Chamber of Colombia’s Constitutional Court stated:
Taking into account … the development of customary international humanitarian law applicable in internal armed conflicts, the Constitutional Court notes that the fundamental guarantees stemming from the principle of humanity, some of which have attained ius cogens status, … [include] the prohibition of collective punishment. 
Colombia, Constitutional Court, Constitutional Case No. C-291/07, Judgment of 25 April 2007, p. 112.
[footnote in original omitted]