[4] On 21 October 2001, 84 people were arrested after rival fans clashed at Stoke City's local Potteries derby with Port Vale.
In the worst incident Stoke fans smashed up and set fire to the White Hart pub, causing extensive damage.
Five people were arrested as trouble erupted after Cardiff lost the match, when hooligans from both clubs confronted each othert outside Ninian Park.
Officers using batons struggled to keep the two sets of fans apart as missiles, including stones, bottles and fence posts, were thrown from the Cardiff side.
[3] Former N40 founding members, Mark Chester & Paul Griffiths wrote a book about their exploits with the firm in 2006 stating that he was a reformed character, and that they were proud of their past, having moved on from the violence of football hooliganism.