Muslim activist Abu Izzadeen has been remanded on conditional bail charged with a terrorism offence.
Abu Izzadeen hit the headlines for heckling John Reid
He appeared at Westminster Magistrates' Court accused under section one of the Terrorism Act 2006, which relates to the encouragement of terrorism.
The 32-year-old hit the headlines last September after heckling Home Secretary John Reid at a meeting in Leyton.
His arrest in an east London street on Thursday was understood to be over a speech made in Birmingham in 2006.
Mr Izzadeen was told to live at his home in Leytonstone, east London, until the next court hearing on 23 March.
District Judge Daphne Wickham also ordered him to provide a £50,000 surety, report daily to police, surrender his passport and not to attend or address any organised meeting.