From 2007 to 2010, the Canadian Embassy in Mexico failed to properly investigate numerous and consistent human and environmental rights complaints surrounding the mine operated by Calgary-based Blackfire Ltd. in Chiapas, Mexico. Before, during and after the conflict, the Embassy actively supported Blackfire, including by advocating for the company with Mexican authorities. This contributed to a quickly escalating situation that ultimately led to the death of an anti-mining activist among other consequences. Policy implications for the Liberal government.