A trial for ousted Egyptian president Hosni Mubarak is set to begin later Wednesday at this police academy in Cairo.Inside, a make-shift court room will hold 600 people and will be guarded by 5-thousand police.A cage made from black steel bars will act as the holding pen for the accused during the proceedings.83-year old Mubarak, his two sons and seven other senior cabinet officials are charged with a number of offenses, the most serious is conspiracy to kill protesters during a popular uprising earlier this year.During February's demonstrations, the world watched as hundreds of thousands of protesters camped out in Tahrir square for weeks until Mubarak was finally driven out.Protesters and ordinary Egyptians accuse Mubarak, who ruled for 30 years, of leading a corrupt system that routinely tortured people in detention and crushed opponents. They blame him for killing about 850 people in the uprising.Security in Cairo has been increased where anticipation for the trial is palpable.Some residents are calling for nothing short of Mubarak's public execution. Waleed Farag Abdel Salam said, "Accountability and the death penalty. Hosni Mubarak must be executed in the square for everyone to see, in front of the entire world."It's unclear whether Mubarak and his two sons will actually show up for the proceedings... although sources say he has left Sharm e-Sheikh where he had been receiving medical treatment.If convicted, Mubarak could face the death penalty.