In my years in Latin America, I never saw the term used in any of the Southern Cone dictatorships.
It is the Colombian military version of the "body count syndrome" that was so used (or abused) by Westmoreland and his generals in the Vietnam war.
Did some research and came up with a good overview of "false positives" in the National Security Archives. (Article by Michael Evans which has some interesting Pdf links to unclassified U.S. State Department cables sent by the U.S. Embassy-Bogota. There is also a declassified CIA cable.)
~~~~~~~~~~~~ snip ~~~~~~~
The earliest record in the Archive’s collection referring specifically to the phenomenon dates back to 1990. That document, a cable approved by U.S. Ambassador Thomas McNamara, reported a disturbing increase in abuses attributed to the Colombian Army. In one case, McNamara disputed the military’s claim that it had killed nine guerrillas in El Ramal, Santander, on June 7 of that year.
The investigation by Instruccion Criminal and the Procuraduria strongly suggests … that the nine were executed by the Army and then dressed in military fatigues. A military judge who arrived on the scene apparently realized that there were no bullet holes in the military uniforms to match the wounds in the victims’ bodies…”
~~~~~~~~~~~~~~~~~
"Body count mentalities"
Colombia’s "False Positives" Scandal, Declassified
Documents Describe History of Abuses by Colombian Army
National Security Archive Electronic Briefing Book No. 266
Posted - January 7, 2009
Washington, D.C., January 7, 2009 - The CIA and senior U.S. diplomats were aware as early as 1994 that U.S.-backed Colombian security forces engaged in "death squad tactics," cooperated with drug-running paramilitary groups, and encouraged a "body count syndrome," according to declassified documents published on the Web today by the National Security Archive. These records shed light on a policy—recently examined in a still-undisclosed Colombian Army report—that influenced the behavior of Colombian military officers for years, leading to extrajudicial executions and collaboration with paramilitary drug traffickers. The secret report has led to the dismissal of 30 Army officers and the resignation of Gen. Mario Montoya Uribe, the Colombian Army Commander who had long promoted the idea of using body counts to measure progress against guerrillas.
Archive Colombia analyst, Michael Evans, whose article on the matter was published today in Spanish on the Web site of Colombia’s Semana magazine, said that, “These documents and the recent scandal over the still-secret Colombian Army report raise important questions about the historical and legal responsibilities the Army has to come clean about what appears to be a longstanding, institutional incentive to commit murder.”
http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB266/index.htm-------------------------
"Homicide" or "murder," either way the "false positives" wound up dead at the hands of some of the military and their thuggish para-partners.