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.
Turkey-backed forces cut off main highway between Afrin city center and western Mabatli town
Migrants were attempting to travel to Europe using illegal routes
Suspects were insulting Turkish president, spreading terror propaganada
3,569 terrorists 'neutralized' since start of Operation Olive Branch in Syria's Afrin, says Turkish president
Operation Olive Branch in Syria's Afrin is continuing successfully: Gen. Hulusi Akar
Turkey is an important NATO ally, NATO Secretary General Jens Stoltenberg tells Turkish president
Sahin Alpay is freed under judicial control with international travel ban and house arrest
Turkish president says if US wants to cooperate with Turkey against terror it must remove terrorists from east of Euphrates
Deputy Parliament Speaker Ahmet Aydin calls for end of FETO activities in South Korea
Home Office says no more applications for Indefinite Leave to Remain from Turkish citizens on ECAA businesspersons visa
Ankara court convicts and sentences former HDP Deputy Co-Chairwoman Aysel Tugluk
Volkan Bozkir says Turkey cannot accept that members of terror group are allowed to wander in Swiss streets
Renovation of 3,000 businesses has been completed in southeastern Diyarbakir’s Sur district, damaged by terrorist PKK group
‘Just because EP took this decision doesn't mean Turkey will give up the fight against terrorism,’ says Bekir Bozdag
Turkish Red Crescent, Disaster and Emergency Management Agency to assist in distribution