Former military leader Moussa Dadis Camara requested that he be placed under home arrest rather than continue to be imprisoned while facing charges of mass murder, but the judge in Guinea denied his plea.
Captain Camara was returned to the country last month after 12 years in exile.
He’s on trial together with 10 other former officials over atrocities that took place in 2009 soon after he seized power.
He’s charged with being responsible for the killing of soldiers of more than 150 people and the rape of more than 100 women at an opposition rally in a Conakry stadium.
Captain Camara has denied the charges.