Iran's rulers have consistently accused Western nations - namely Britain and the United States - of plotting to destabilise the country after the disputed presidential election and of helping to incite the wave of unrest.
The opposition says dozens of people died and hundreds were arrested during the protests following the re-election of President Mahmoud Ahmedinajad.
Among the hundreds of people on trial are several foreign embassy staff. Iran also expelled two British diplomats and several foreign journalists. Read more here ...
Source: ABC Online