The call came after fraud was suspected in the transfer of about 300 million baht (US$ 8.5 million)worth of late construction tycoon Chuwong Saetang's shares. The billionaire was killed in a car crash under suspicious circumstances in late June.
His family has been pushing for closer investigation into the businessman's death, which came just days after he allegedly transferred the shares to two women, who claim they were intimately involved with him.