Golden Dawn: Where have supporters gone?
3 October 2013 Last updated at 15:29 BST
The head of Greece's far-right Golden Dawn party, Nikos Mihaloliakos, has been remanded in custody on charges of organising a criminal group.
He appeared before investigating magistrates at an Athens court in a hearing that lasted into the early hours of Thursday.
He was one of six MPs arrested at the weekend amid outrage over the murder of an anti-racist musician.
The BBC's Mark Lowen explains the significance of the court hearings, and why it could be the beginning of the end for the Golden Dawn party.