Iran is conducting a mass trial of about 100 Iranian defendants in its Revolutionary Court.

CNN: U.N. experts say Iran tortured to extract confessions

The mass trial is due to begin in the United Arab Emirates (UAE) of 94 Islamist activists accused of plotting to seize power in the Gulf state.

BBC: UAE 'coup plot' trial of 94 Islamist activists to begin

Rather than recruiting people directly, the 'mass participation' trial relies on members of the public volunteering.

BBC: Can you control what you dream?

MADRID, Spain (CNN) -- A Spanish court Wednesday delivered an unexpectedly mixed verdict in the trial of 28 defendants charged in the 2004 Madrid train bombings, convicting three of mass murder but delivering lesser convictions against the others.

CNN: Spain condemns terror verdict

Jurors in the trial of three Birmingham men accused of a bomb plot that prosecutors said could have caused mass deaths are considering their verdicts.

BBC: Jury retires in terror trial of Birmingham men

Once the inquiry has finished sifting through a great mass of evidence, the judge is expected to decide on what shape a criminal trial will take - who will be charged and with what, says the BBC's Alan Johnston in Grosseto.

BBC: Costa Concordia: 'Hand of God' saved lives