Related Rule
Colombia
Practice Relating to Rule 80. Booby-Traps
In 1995, in a ruling on the constitutionality of the 1977 Additional Protocol II, Colombia’s Constitutional Court stated with respect to the prohibition on the use of weapons of a nature to cause unnecessary suffering or superfluous injury:
Although none of the treaty rules expressly applicable to internal conflicts prohibits indiscriminate attacks or the use of certain weapons, the Taormina Declaration consequently considers that the bans (established partly by customary law and partly by treaty law) on the use of … booby-traps … apply to non-international armed conflicts, not only because they form part of customary international law but also because they evidently derive from the general rule prohibiting attacks against the civilian population. 
Colombia, Constitutional Court, Constitutional Case No. C-225/95, Judgment, 18 May 1995, § 23.