Prosecutor Amro Sami issued his ruling today, nearly a month after six convicts escaped following clashes with guards that killed a policeman and a civilian.
The police face charges of negligence after investigators found that the inmates had smuggled weapons into the facility with the help of visitors.
Policemen are nearly always acquitted when they go on trial in Egypt. Nearly all of the 100 policemen charged with killing protesters during the 2011 uprising that toppled Hosni Mubarak were acquitted.