London demonstration against police violence

A demonstration through the streets of London, organised by The United Campaign Against Police Violence, ends with the "kettling" of New Scotland Yard as demonstrators surround the building. The demonstration brought together protesters and relatives of those who died in police custody to highlight the use of police violence during the recent G20 gathering in London. Marcia and Samantha Rigg - sisters of Sean Rigg who died in police custody in August of 2008 - joined the march and later released black balloons to represent over 100 deaths in police custody over the past 40 years.