CAIRO - The lawyers of former minister Habib el-Adli, during their defence, on Thursday accused the security at the American University in Cairo (AUC) of killing protesters in Tahrir Square during January 25 Revolution, saying that the police didn't kill them. Meanwhile, a statement issued yesterday by the AUC denied this. "This is untrue. All members of the Tahrir Square campus security staff are Egyptians who do not carry firearms at any time," said the statement, adding that the AUC does not have any surveillance cameras anywhere on its Tahrir Square campus and does not possess any video recordings. The AUC has co-operated fully with the investigation into the events of January 2011 and has turned over all evidence to the authorities, added the statement. The trial of ousted president Hosni Mubarak, el-Adli and six senior policemen was adjourned on Thursday until Saturday. These men are charged with giving orders to kill protesters in Tahrir Square during the January 25 Revolution. Mubarak's sons ��" Gamal and Alaa ��" and fugitive tycoon Hussein Salem are being tried in a corruption case. The defence said that the evidence gathered by the prosecution includes rubber bullets and tear gas canisters, but not live ammunition, the official Middle East News Agency (MENA) reported. El-Adli's lawyers added that all police ammunition is marked with serial numbers. They said that the AUC security handed over 71 spent birdshot cartridges to the Prosecution 36 days after the revolution, wondering why there was such a long delay. The defence denied what was said by the AUC security, which stated during investigations that the police broke into the AUC building and opened fire on protesters. It claimed that it was members of the AUC security who killed protesters, in an attempt to protect their building. The defence also accused many foreign bodies of being involved in the killing of protesters and policemen, adding that policemen said during investigations that cars with diplomatic number plates opened fire on them. Meanwhile, Mubarak's lawyer Farid el-Deeb said last week that Mubarak is still president. Legal experts say that, if convicted, Mubarak will face the death penalty. Many Egyptians want political trials for those people who corrupted Egypt during the ex-president's 30-year rule.