The trial of Egypt's former interior minister, Habib Al-Adly, has been postponed till next month.
Former head of iron-fisted Egyptian security services appeared along with his six police commanders.
Al-Adly is accused of ordering police to fire on anti-government protesters during the January 25th revolution in which up to 850 people died.
If found guilty, he and his commanders could face death sentence.
Al Jazeera's Scott Heidler reports from Cairo.
