Olympics cyclist demonstration CCTV footage released
25 February 2013 Last updated at 23:22 GMT
Previously unseen footage has been released of a cycling demonstration on the night of the Olympic Opening Ceremony.
Roads around the stadium in Stratford, east London, were cordoned off as part of a huge security operation.
Almost 200 of the cyclists were arrested, and nine are now on trial charged with breaking a public order act.
Gareth Furby reports.