Approximately 1,500 participants in demonstration of Friday of the Only Demand decided to organize a sit-in in Tahrir Square despite the differences among the demonstrators' demands. Some demands include the transfer of power from the head of the High Constitutional Court and determining a schedule to achieve the revolution's demands. Other demands included withdrawing the al-Selmy constitutional principles document, to deliver power no later than April 30 and to stop military courts for civilians. Many movements and coalitions participated in the sit-in, including Al-Wehda Movement, Revolution's Independent Youth Union, Revolution's Youth, New Muslims Support Coalition, No for Military Trials Movement and April 6 Youth Movement. “We decided to sit-in until power is transferred to an elected civil council or an elected civil president,” the New Muslims Coalition media spokesman Hossam Aboul Bokhary said. National committees imposed inspections inside the square and refused to open streets and used barricades to prevent cars from passing in. Three thugs, one of them female, attacked the demonstrators in Tahrir Square and injured them with blades. They frightened off all the demonstrators and threatened to anyone who comes close to them will be killed. The demonstrators didn't accept what happened, but surrounded the thugs and arrested two of the thugs while the third one escaped. The demonstrators frisked the thugs but couldn't find any identification. The demonstrators beat up the thugs until they fainted. Some demonstrators transferred them to the square's clinic. Arabic here