That problem is the combination of attitudes to alcohol and, in particular, knives—one police officer yesterday suggested that knives have replaced medallions as the mark of manhood among some young men in certain parts of Scotland—and an inability to resolve even the most minor arguments by any means other than violence.The high incidence of knife crime is the main reason why we are introducing legislative proposals to double the maximum sentence for knife crime; why we are ensuring that police officers are able to stop and search people who they think might be carrying offensive...