http://news.scotsman.com/edinburgh/39Hardcore-offenders39-were-on-yer.6807763.jp
"A POLICE crackdown on serial bike thieves has seen eight alleged "hardcore offenders" caught by officers and charged with stealing £70,000 worth of cycles in the Capital."
""They were stealing bikes, often from common stairs, then selling them through a network of friends or on websites like eBay and Gumtree.""
"Officers have so far recovered £13,700 of stolen bikes"
...might be worth contacting the police if you have had a bike stolen recently.