Thursday announcement came as Songkhla-based Nathawee Provincial Court issued more arrest warrants in relation to the case.
The Provincial Court has now issued arrest warrants for 187 suspects – 42 of whom face an additional money laundering charge, a meeting of case investigators, led by Pol Maj-General Paween Pongsirin, was told at the Provincial Region 9 Police Operation Centre in Hat Yai.
Seventy-two suspects in this case are currently on trial, with it at the advanced witness-interviewing stage.
The 12 money laundering suspects were apprehended on Wednesday and are believed to be members of a human trafficking network in Satun and Ranong.