At the beginning of October, Spain's supreme court dismissed the case known to Rwanda watchers as the Merelles (2008) indictments. Judge Andreu Merelles had charged forty Rwandan military officials of crimes against humanity, war crimes, terrorism, and genocide, and issued warrants for their arrest. The indictment was launched because some Spanish citizens had been killed in the Rwandan civil war. But it expanded to include Rwandan and Congolese victims of the armed forces of Paul Kagame, the winner of the 1990 civil war and the man who may have just become Rwanda's President-for-life (more on that below).
The indictments had always excluded Kagame because of Kagame's presidential immunity. Kagame went about protecting himself in two ways, both of which eventually succeeded. First, Kagame may have reasoned, if the president is immune to prosecution, why not stay president forever, making whatever constitutional changes necessary to do so? Second, the indictments themselves were challenged and the doctrine underlying them, ultimately defeated.
The doctrine in question was called 'universal jurisdiction'. The idea was that a crimes like genocide and crimes against humanity were not crimes that stopped at national borders. As a result, any country could charge and try those accused of such crimes, even if they were from another country. Universal jurisdiction is a liberal doctrine, analogous to the selectively applied Responsibility to Protect (R2P). Universal jursidiction is not as prone to abuse as R2P mainly because it is not as asymmetric as R2P: any country with a judiciary can hold a trial and issue arrest warrants, but only two or three countries in the world have the military might to send military forces to other countries, whether on the pretense of protecting people or some other. For non-superpowers, for smaller countries, there was only the threat of the law.
Spain was just such a small country whose judges took up the law against human rights abusers in other countries. Under the universal jurisdiction doctrine it attempted to try Chile's dictator Augusto Pinochet, Guatemalan military officers, and Argentinian military officers. But the Spanish judges didn't just chase fallen dictators from smaller countries. They also pursued former US Secretary of State Henry Kissinger, US soldiers for crimes in Iraq, Chinese politicians for crimes in Tibet, and Israeli generals for massacres of Palestinians.