Police in Chon Buri, are questioning a shooting range instructor and a Royal Thai Navy petty officer over allegations they supplied rifles to a Chinese buyer, as part of an ongoing investigation into an arms cache linked to military-grade explosives discovered in Huai Yai, Bang Lamung district.
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The alleged sales price was around 200,000 baht per rifle, according to investigators, who are examining whether repeated transactions took place over time. Officers are now expanding inquiries into a wider suspected arms trafficking network operating in the region, with potential cross-border implications.
Authorities said the case stems from the arrest of a Chinese national found with military-grade weapons and C4 explosive materials in the Huai Yai area of Chon Buri province, prompting broader scrutiny from law enforcement agencies. Following that arrest, investigators traced possible supply routes for the firearms through seized evidence and communications analysis, leading them to two Thai military-linked suspects identified as Mr Kachen, a shooting range instructor and Petty Officer Methee of the Royal Thai Navy. Both men have been taken in for further questioning at Na Jomtien Police Station.
The investigation also found that another of the firearms purchased by the Chinese suspect originally belonged to a deputy inspector of Sai Mai Police Station. It was later pawned to a colleague while the officer was serving in the Metropolitan Police Investigation Division 2 in 2011, then resold to officers at Tao Poon Police Station, later transferred again to an administrative officer within the MPB, and finally sold to a deputy inspector at Huai Khwang Police Station who has since been dismissed from service and imprisoned for over three years in a corruption case involving e-cigarettes.
That firearm changed hands through four different owners in total. Ms. Praw, the suspect’s former girlfriend and the ex-partner of the police officer involved, allegedly helped facilitate the purchase after the Chinese suspect expressed interest in acquiring a gun, with the transaction price set at 100,000 baht. Metropolitan Police Division 2 and MPB Administration Division have now ordered a fact-finding committee to investigate all officers involved further.
Police investigators are examining financial transactions, communications records and connections between all parties to determine whether an organised arms smuggling network is operating in the area. The Royal Thai Police have emphasised a professional investigation approach while expanding evidence gathering. The investigation remains ongoing.
Naewna reported that they are continuing interrogations and analysis of seized evidence to establish the full scope of the alleged arms distribution network and identify additional suspects if present. Further legal action will depend on forensic and financial findings. Authorities have not yet confirmed whether further arrests will be made.

Picture courtesy of Naewna
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Adapted by ASEAN Now Naewna 10 May 2026
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