The fashion industry has also seen an explosion in back street sweatshops exploiting illegal or underpaid labour...Anne Carvell of trade body the Knitwear Industries Federation says sweatshop labour could account for up to 40% of the jobs in the clothing and knitwear industry...The High Street retailers make all of their suppliers sign a code of conduct forbidding the use of cheap labour. But according to one senior industry source, "the retailers like to keep everything at arms length." [refers also to catering, construction, security & contract cleaning sectors]