The presiding judge ordered the trial’s adjournment citing bad weather which prevented Mubarak’s helicopter from taking him to the court, Youm7 reported.
The defendants are accused of killing demonstrators during the January 25 Revolution and spreading chaos.
Mubarak, businessman Hussein Salem, Gamal and Alaa face also trial for financial corruption, misusing presidential power to gain money and exporting natural gas to Israel under global market prices.
The trial, held at the Police Academy, had been scheduled to hear the defense lawyers’ plea.
On March 27, Cairo Criminal Court had adjourned the trial where Mubarak and his sons are accused of embezzling public funds worth 125 million EGP (U.S. $18 million.)
Additional reporting by Mohamed Abdel Razeq.