Crime Suppression chief Pol Maj-General Akaradech Pimonsri said yesterday that police would inspect the car involved in the accident.
Banyin Tangpakorn, Chuwong’s friend and a former deputy commerce minister, has already been summoned to bring it in.
Police haven’t ruled out the possibility of murder, Akaradech said.
After presiding over a meeting of investigators on Chuwong’s case at headquarters, he said that so far 50 witnesses had been interviewed and had provided useful and solid leads.
Police still had to question witnesses for more information on business transactions and had to wait for more evidence from the Securities and Exchange Commission and the Udomsuk Police Station, but the probe should be wrapped up by early next month, he said.