The former president of Chad is facing extradition over claims that he is responsible for the torture and killing of tens of thousands of people during his eight years in power.Hissene Habre was arrested yesterday in the Senegalese capital Dakar.The 63-year-old, often nicknamed by his critics as the “African Pinochet”, has been living in exile in Senegal since 1990, when he was ousted from power in Chad by a coup. His arrest has been welcomed by human rights campaigners. Habre’s time as president was known for its fierce suppression of opponents, who, it is alleged, were often tortured and executed.It is estimated that more than 40,000 people died. Senegalese authorities have already said they will not oppose Habre’s extradition, provided he is guaranteed a fair trial. A decision is expected in the next few days.