Cairo's criminal court has cleared low-ranking policeman Mohamed Ibrahim Abdel-Monem, as well as officers Alaa Abdel Razak and Hazem El-Kholy, of murder and attempted murder during the January 25 Revolution on Wednesday.
The trio were accused of killing two protesters and attempting to murder two more during the infamous clashes on 28 January 2011, which is known as the Friday of Rage.
They were exonerated on the same day as the Supreme Military Court sentenced two civilians to death for killing an army officer.
Last June, Abdel-Monem, also known as El-Sunni, faced the death sentence in another case that saw him convicted of killing 23 protesters and attempting to kill 16 more at a police station in the district of Al-Zawia Al-Hamra, also on the Friday of Rage. The verdict could, however, be overturned as the court has also ordered his retrial.
The charges against other policemen accused of committing a similar offence were also cleared.
Several hundred civilians across the country were killed during the initial 18 days of the ongoing revolution, which toppled former president Hosni Mubarak on 11 February.
Many policemen opened fire on demonstrators during the clashes, but so far, no policemen have been convicted of murder.