Over 80 police officers arrested three Bulgarians and one Frenchman who split up recruitment and logistical responsibilities for the workers at four winemaking companies near Lyon. The victims were offered legitimate employment and told they would receive 60 euro (US$66) a day, alongside housing and transport.
When they arrived in France, however, they lived on a campsite, lost wages for meals and in many cases could not afford return trips to Bulgaria.
To launder the money, criminals funneled withheld payments into French properties.
In Bulgaria, roughly 32,000 people live in slavery out of a population of over 7.1 million, while the estimated number in France is about 129,000 out of 64.5 million, according to the Global Slavery Index, created by the Walk Free Foundation.
The problem is transnational, and trafficking can carry victims across multiple borders.
In Europe specifically, forced labor trafficking is becoming increasingly more common, and is now more widespread than sexual slavery, reported Reuters. Per 2016 statistics, nearly 25 million people are trapped in forced labor situations around the world, according to the International Labour Organization.