The “Caesar Photos” of torture and killing in Assad’s prisons made headlines last year. Their greater impact, however, may only be starting. Despite the massive crimes committed (by many sides) throughout the Syrian civil war so far, it has previously been unclear whether national or international law could be used for justice (except in cases related to asylum). These photos created a chain of events that have now lead to the first case being put against the Assad government in Spain. How did this happen and what could it mean?