This report (2018) delivers research by International Crisis Group, which has for the first time quantified the positive impact of the UN’s Commission against Impunity in Guatemala (CICIG). The findings show how CICIG’s justice reform activities since 2007 helped contribute to a 5 percent average annual decrease in murder rates in the country. Guatemalan President Jimmy Morales announced in 2018 that he will end CICIG’s mandate in 2019, but the commission has won widespread public support in Guatemala for its prosecution of previously untouchable elites. It is a rare example of a successful international effort to strengthen a country’s judicial system and policing.