The ten defendants are being tried on charges of ordering the killing of demonstrators upon the January 25 revolution, which brought Mubarak's three-decades of rule to an end in 2011.
Former military police commander Hamdi Badeen, who is now Egypt's military attaché in China, is expected to testify during the session, which is held at the Police Academy on the eastern outskirts of Cairo where the trial of ousted president Mohamed Morsi on charges of inciting the killing of demonstrators, is also held.
The Executive President of the Egyptian National Telecommunications Regulatory Authority Amr Badawi is also expected to testify during the session.
The backers of Mubarak, who now receives treatment at a southern Cairo military hospital, converged on the vicinity of the court.
The judge presiding over the trial has banned the live broadcast of trial sessions until he hears the accounts of the witnesses.
The former president, his two sons, and a business tycoon are also accused of financial corruption.
Turkish Prime Minister Tayyip Erdogan offered what the government said were unprecedented condolences to the grandchildren of Armenians killed in World War One
Convoy bound for Suleiman Shah Tomb in Turkish territory is planned activity, says military chief
AK Party Spokesman Celik still debating whether new election system will be a single member or narrowed district.
Turkish police say they plan to deport 135 illegal immigrants, including 120 Pakistanis.
Turkey condemned the forceful removal of the Ukrainian flag in the Crimean Tatar Mejlis by a group with unmarked military uniforms.
Turkey is looking good to potential investors according to visitors to the Borsa Istanbul forum in New York.
Turkey's President Gul calls for further cooperation with New Zealand on economy and commerce as he hosts New Zealand Governor-General Mateparae.
Former ministers will attend parliamentary debate corruption inquiry.
"The people do not want to see protesters clashing with police in the street. The people don't want streets scenes dominated by stones, sticks and Molotov cocktails" Erdogan said
Energy Minister Taner Yildiz will open the fair, and International Energy Agency Chief Economist Fatih Birol will deliver a speech during the opening ceremony.
Country faces challenge of aging population, according to TurkStat report.
Rabaa Rahmoun jumped into the Halic River to save an elderly man from drowning.
CHP's unsuccessful mayoral candidate in Ankara, Mansur Yavas, tweeted that he had taken the battle to the Constitutional Court
Turkey's flag carrier airline company, THY, launches its new route to Stavropol, Russia.
Dailies on Tuesday covered the gun-fight in a night club where a famous Turkish footballer got shot; the government's determination to restrict May Day protests in Taksim Square along with worker unions' insistence on going; the annulment of local elections in the western city of Yalova after a recount following a close race.
The manufacturing sector emerged as the largest recipient of international capital during January and February with $849 million.