Two Greek policemen have gone on trial for the fatal shooting of a teenage boy in Athens. His death sparked mass riots in 2008.
The process has been adjourned until Friday, however there was a high security presence outside the courthouse.
The case has been moved to Amfissa, some 200 kilometres from the Greek capital, amid fears anarchists will use the trial to protest.
The two officers are accused of murder and attempted murder of 15-year-old Alexandros Grigoropoulus in December 2008.
His death caused outrage across Greece and large scale demonstrations outside parliament.
Public anger over the killing widened into a generalised protest against the government and resulted in violent clashes and running battles between authorities and youths.
The charges against the two officers carry a maximum life sentence. They claim the teenager died from a ricochet after they fired a warning shot.