Karl Marx described them as 'drunken, always a bad lot' and as 'recruiting-sergeants' for the farmer. A hundred years later the gangmasters are still a power to be reckoned with in the Fenlands. The farmworkers' union would like to see them swept away, but even the gangmasters' harshest critics admit they're probably a necessary evil.
Producer MICHAEL FITZGERALD Series producer MARTIN SMALL BBC Pebble Mill