A new set-up in CID was initiated years ago to handle syndicated ah long cases. They roped in the seasoned IOs from the land divisions. In the case of CID investigation, they will detain their accused persons under CLTP Act. Those in the land divisions will charge their accused persons in open court. Even with this set-up, they have not made much progress in dealing with the ah long problem.
Bank accounts are useful to a certain extent but major problem untouched. These accounts never belong to the syndicates. They belong to the debtors. Borrowers' accounts included. If "A' wants to loan $500 from the loan sharks, the latter will get their debtors to deposit the money to borrower's account. It is unlikely to have just one transaction of $500. For a loan of $500, "A" is likely to have several transactions making up to $500 in his account. When "A' makes his repayment, the cycle repeats itself. "A's" repayment will go into a borrower's account.
End of the day, those apprehended because their accounts were used by the syndicates are merely borrowers who defaulted on their payments. Defaulters can either hand over their account number or act as 'commando' for the syndicates.