A man and woman from Bristol have been arrested over the alleged trafficking of Slovakian nationals into the UK for slave labour. The alleged ringleader of the network, a Slovakian man aged 43, and Polish woman aged 44, were detained on suspicion of Modern Slavery Act offences, money laundering and fraud by National Crime Agency officers in the Fishponds and Locklease areas of Bristol on 8 October.
The arrests follow a two-year National Crime Agency investigation.
They are suspected of exploiting dozens of Slovak migrants, who would be transported to the UK and then put to work in labouring jobs or car washes.
The victims would often have their promised wages withheld, bank accounts controlled by their captors and be threatened with violence.
NCA branch commander Ian Glover said: "Throughout we have heard distressing allegations of the exploitation, abuse and humiliation of victims for financial profit.
"Those victims have now been safeguarded and are being supported."