WHY DONT THE "COPE" CHECK WITH ISLAND REVENUE DEPT TO SEE IF THEY HAVE PAID TAXES FOR THIS MONEY INVESTED. THEN WE WILL KNOW FOR SURE IF IT IS MARGINS OR BLACK MONEY.
if it is Margins .... everybody is barking up the wrong tree. In this case crusify the banks that extended this credit. or if it is brockers see if the taxes are paid for this money.
if the marfia cannot explain the source of the money. confiscate all such stocks to the value of tax payable and give it to EPF Portfolio .
Then close this issue .