Does anyone here have a good link to an investigation into UK bike theft? Who is responsible? Is it their full time job? Do they work in firms, where do the

Does anyone here have a good link to an investigation into UK bike theft? Who is responsible? Is it their full time job? Do they work in firms, where do the bikes end up, and what are the profit margins for thieves? If the thieves are individual and petty, how do they fence locally without being caught?