Practice Relating to Rule 72. Poison and Poisoned Weapons
Colombia’s Basic Military Manual (1995) prohibits the poisoning of water.
Colombia’s Operational Law Manual (2009) states:
4. Rules for the conduct of hostilities
c. Restrictions on the means and methods
The means and methods of warfare that can be used are limited. Weapons that cause superfluous injury or unnecessary suffering are prohibited. The general principles on the use of weapons establish that “the use of means and methods of warfare which are of a nature to cause superfluous injury or unnecessary suffering is prohibited”. Likewise, “the use of weapons which are by nature indiscriminate is prohibited”.
In this sense, the use of the following weapons is prohibited:
[footnotes in original omitted]