Transport police target knife crime during summer holidays / 24dash.com, 25 July 2008
http://digbig.com/4xftp
"More than 60 British Transport Police officers have spent the past week involved in a summer holiday crackdown targeting anti-social behaviour, drug possession and knife-carrying. BTP Inspector Graham Urry said rail passengers at key transport hubs in London would have noticed an increased presence of officers, including the use of the mobile metal detecting arch – known as Operation Shield – along with the deployment of drug detecting dogs."