Migrant laborers moving to Britain in order to find temporary blue-collar work are at risk of exploitation. Currently, the government is in the process of implementing two labor schemes in order to combat labor shortages. The first is for migrants from non-European Union countries who will work on farms for six months, and the other scheme is intended for workers from “low-risk” countries who may work for up to a year. Critics fear that the schemes may create “expendable workforces” that can be easily exploited. Additionally, visa and travel costs associated with moving to Britain can lead migrant workers to become trapped in debt to recruiters. Migrant workers also lack access to benefits associated with full citizenship such as unemployment benefits and housing.
See "Migrant workers face abuse, slavery threat in post-Brexit Britain", Kieran Guilbert, Reuters, March 20, 2019