Police arrested Benjamin John Soulsby, 31, at his rented house in a housing estate in Tambon Tonpao following a tip from the house owner that his tenant appeared to be high on drugs.
Police found 0.95 grams of crystal meth in the house and a device for using the drug. Police suspected he flushed some drug down the toilet when they arrived.
Pol Col Pallop Siriyakul-na-Ayutthaya, deputy commander of the Immigration Police Division 5, said Soulsby entered Thailand on September last year and his visa expired on October 8, last year.