The trial of prominent activist Alaa Abdel-Fattah and 24 others resumes on Sunday.
They face charges related to a protest against military trials of civilians outside the Shura Council in November last year.
It was one of the first protests dispersed by force in accordance with a controversial new protest law that criminalises unauthourised public demonstrations.
The No to Military Trials campaign group claimed responsibility for organising the protest, but Abdel-Fattah was charged with being its organiser.
Abdel-Fattah was also charged with assaulting members of the security forces and stealing a police officer's two-way radio.
All the defendants have been released on bail.