Pol Maj-General Thirapong Wongratphithak, commander of Metropolitan Police Division 4, on Monday said Arthit Boonyaprateep, 38, had been arrested at a checkpoint on the Pradit Manootham road in front of the CDC shopping mall. 
Police found 400,000 meth pills and 5kg of crystal meth in his car.

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He was taken to his rented room on Soi Mahatthai, where police found a further 253,000 meth pills. 
His confession then led police to seize another 6 million meth pills and 444kg of ice from a pickup truck at his house in Ayutthaya&rsquo;s Wang Noi district, Thirapong said. 
Police are conducting an investigation with a view to apprehending Arthit&rsquo;s accomplices, the commander added.

Checkpoint arrest leads to seizure of 6m meth pills, 440kg of ‘ice’

Police seized more than 6 million methamphetamine pills and 444 kilograms of crystal meth, or “ice”, from a house in Ayutthaya after a drug suspect was arrested at a drink-driving checkpoint in Bangkok late Sunday night.