GLA - Six arrested in latest trafficking operation
A 22-year-old woman also from Great Yarmouth was arrested on suspicion of money laundering.
All four were taken to the Great Yarmouth Police Investigation Centre.
In Suffolk police arrested a 29-year-old man from Bury St Edmunds and a 37-year-old woman from Ipswich also on suspicion of trafficking and supplying unlicensed workers.
Both were taken to the Bury St Edmunds Police Investigation Centre.
If anyone suspects someone of being involved in people trafficking they are asked to contact their local police force immediately.