“In constituency, it’s most similar to a prison riot: what will happen is that, usually in the segregation unit, nobody will ever know exactly, but a rumour will emanate that someone has been hurt in some way. There will be some form of moral outrage that takes its expression in self-interested revenge. There is no higher purpose, you just have a high volume of people with a history of impulsive behaviour, having a giant adventure.
“Of course, the difference is that, in a prison, liberty has already been lost. So something pretty serious must have happened in order for young people on the streets to be behaving as though they have already been incarcerated. As another criminologist, Professor John Pitts, has said: ‘Many of the people involved are likely to have been from low-income, high-unemployment estates, and many, if not most, do not have much of a legitimate future. There is a social question to be asked about young people with nothing to lose.’”
Taken from Zoe Williams' column in The Guardian.