CAIRO: A prosecutor ordered the four-day detention of a police officer accused of sexually assaulting a prisoner, judicial sources said on Tuesday. They said prosecutor Bakr Ahmed Bakr questioned assistant-investigation officer Islam Nabih on Tuesday. He also ordered the detention of Reda Fathi, a non-commissioned officer, for four days. A video circulated on local blogs last month and sparked uproar. It showed Imad al-Kabir, a bus driver, lying on the floor, naked from the waist down, with his hands bound behind his back and his legs held in the air. He screams and begs as he is sodomized with a stick while those around him, whose faces are not visible, taunt him. Kabir s lawyer has said the torture took place in January 2006 in a police station in Bulaq al-Dakrur after Kabir was detained and beaten for intervening to stop an argument between the police officers and his brother.