A historic trial scheduled for late July will see former Chadian dictator Hissène Habré face charges of human rights abuses.<br /><br /> After falling from power in 1990 Habré sought exile in Senegal.<br /><br /> Now, after 25 years Hissène Habré will answer charges in a specially commissioned court in Dakar. <br /><br /> The trial will be the first in which courts of one country can prosecute the former ruler of another.<br /><br /> Clement Abaifouta has long campaigned for those who suffered under Hissène Habré and now leads a victims association: “We are here at Hamral Gouz, on what is called the plain of the dead. Under my feet, beneath this sand, there are bones, the bones of my colleagues, victims, which I buried here with my own hands. “<br /><br /> The outskirts of N’Djamena, the Chadian capital, bears testament to one of the darkest chapters of the country’s history.<br /><br /> It is the site of one of the mass graves dating from the time of Hissène Habré, who led a reign of terror in the country, between 1982 and 1990.<br /><br /> Clement Aba