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.
Incident in Hatay province leaves 18 other people injured
Government wants new fund to keep growth on track, limit economic damage from failed coup
President says attacks like Friday's Sirnak bomb which martyred 11 police will only increase Turkey's determination
Following attack that killed 11 police officers, PM Minister Binali Yildirim says Turkey will make extremist PKK collapse
Anti-extremism officers carry out separate operations in central and southern Turkey
Despite some changes in Turkey post-coup, however the Turkish ambassador to the Ukraine has said that focus on what remains the same is crucial
The Turkish incursion into Turkey is regarded to be one of the key points of disagreement between Turkey and the U.S.
Hulusi Akar scheduled to meet Russia's Chief of General Staff Valery Gerasimov in Ankara on Friday
Car-bomb attack hits checkpoint close to riot police unit in Cizre
Cavusoglu says there is 'no change' in Turkey's ambitions to join the EU
Personnel escorting CHP leader Kemal Kilicdaroglu come under fire in northeastern Turkey; 3 wounded, 2 critically
Incident in Hakkari province leaves another police officer, four soldiers injured
The openings of bridges across the Bosphorus -- the first in 1973 and the second in 1988 -- have been landmark dates in the modern history of Istanbul.
Secretary of State John Kerry tells Turkey extremist groups has begun withdrawal to east of river
Health minister said that Turkish military’s Operation Euphrates Shield in Syria has been 'very successful'
Nearly 300 young Muslims from 56 countries gather in Turkey and back the country's democracy