I agree with my right hon. Friend that most of these young people are no more harmful than we were in our youth, but does he not agree that the danger lies not in their youth or behaviour, but in the large numbers involved and in the danger of crowd psychosis developing? Will he bear in mind that the reason why I and others suggested the removal of driving licences or cars was to cut down their mobility? Would he seek other means, such as making sure that they have to report to their local police station several times daily, to make certain that the real troublemakers cannot congregate at the scene next time?