Company adviser Chalermpol Pinthongkham, who briefed the investigators during the two-hour inspection at its printing house in Samut Prakan’s Phra Samut Chedi district, insisted the firm had a good record and was confident that no test papers had been leaked while it was handling the papers. He said his firm was in charge of printing the papers, not the entire process.
Thanin Prempree, director of the DSI's corruption prevention and suppression centre, said the printing house’s system seemed highly secure and very strict. DSI will summon two exam project managers to give information on April 23.