The TaxPayers' Alliance has criticised the £500,000 legal aid given to the Connors family from Cheltenham, millionaire travellers convicted for forcing vulnerable men from the MIdlands into slave labour.
The Chief Executive of the campaign group says legal aid should not be made available for the wealthy.
"Handing wealthy criminals huge sums of taxpayers' money is yet another example of why our legal aid system is in dire need of reform," he said.
"Legal aid is important in ensuring access to justice but it must also be sustainable to taxpayers.
"It's incredible that this gang were able to claim so much in the first place, but now that they have been found guilty, taxpayers have every right to expect their money to be reclaimed at the very least."