After World War II, the United Nations defined genocide at the Convention on the Prevention and Punishment of the Crime of Genocide in 1948.  Item D of Article II states that “Imposing measures intended to prevent births within the group” is considered genocide.

Unfortunately, it was difficult to define the women affected as an enumerated group, and there was no evidence found by the CVR that Fujimori had intent to destroy the indigenous population. As a result, sterilizations were left out of the final report of the CVR, and Fujimori was never tried for these crimes. 

Fujimori was tried for his other crimes against humanity and sentenced to 45 years in prison from multiple charges during multiple trials.