Gangmaster culture spreads across Britain / The Guardian, 10 Jan 2005

http://www.guardian.co.uk/uk_news/story/0,3604,1386647,00.html
Felicity Lawrence
"Supermarkets, catering chains and processing plants are accused of operating a system dependent on subcontracted labour that permits not only the abuse and underpayment of foreign workers, but also identity fraud, large-scale tax avoidance, benefit fraud, crime and violence. "