Who is Abu Izzadeen?

Abu Izzadeen was born in London to Jamaican parents as Trevor Brooks, converting to Islam when he was 17 and changing his name to Omar Izzadeen.

The 32-year-old, who is believed to have been radicalised by Omar Bakri Muhammed and Abu Hamza al-Masri, has travelled in Pakistan and Kahsmir and speaks fluent Arabic.

Shortly after the London bombings on July 7 2005, Izzadeen told the BBC that the four suicide bombers "should be praised widely". In 2006, he hit the headlines for heckling the then home secretary, John Reid, as he visited east London.

What is he guilty of?

After a three-month trial at Kingston crown court, Izzadeen was convicted of inciting terrorist acts and fundraising for terrorist purposes, both outlawed under the Terrorism Act 2000.

Five other co-defendants were also found guilty of one or more of the same terrorism offences, while two other men walked free.

Simon Keeler was found guilty of both charges, Abdul Saleem and Ibrahim Hassan were convicted of inciting terrorism, and Abdul Muhid and Shah Jilal Hussain were found guilty of fundraising for terrorist purposes. Hussain fled during jury deliberations, but has since given himself up.

Rajib Khan was cleared of inciting terrorism, but jurors failed to reach a verdict on the charge of inciting terrorism overseas. They also failed to reach a verdict for Omar Zaheer, who was charged with the same offence.

What did he do?

On November 9 2004, Izzadeen and seven others with whom he was on trial were involved in inflammatory speeches and preaching at the Regents Park mosque in London.

At the time, US-led forces in Iraq were engaged in a bloody battle in Falluja. The men called on people to fight British and US troops and give money to fund terrorism. Security staff at the mosque, alarmed at their words, called police.

However, it was not until February 2006, during raids related to protests over the Danish cartoons furore, that video evidence of the speeches made at the mosque was found.