A 31-year-old Chinese man, Sun Mingchen, was sentenced to 46 years in prison by a court in the Pattaya area of Thailand this week following a car accident that revealed his possession of a large-scale illegal arsenal. Despite pleading guilty and providing substantial assistance in the investigation, the court found that Sun Mingchen had violated the Firearms Act, Arms Control Act, and Radio Communications Act, constituting a serious threat to public and national security. After a one-third reduction in his sentence, he was ordered to serve a term of 44 years and 24 months (totaling 46 years) in prison.
According to Thai law, the maximum actual sentence for such crimes is typically capped at 20 years. The court also issued an order for the confiscation of all weapons and equipment involved in the case.
During the trial, Sun Mingchen admitted to all charges against him, while the second defendant in the case denied the allegations. The court temporarily removed the second defendant’s case from the trial list, directing the prosecution to refile charges within 15 days and continue the detention of the accused.
The incident stemmed from an accident on the evening of May 8th when Sun Mingchen’s car overturned in the Sattahip district of Chonburi Province, Thailand. Upon responding to the scene, police discovered a Glock 26 handgun and ammunition inside the crashed vehicle, prompting a thorough investigation.
Subsequently, authorities searched Sun Mingchen’s residence in the Huai Yai area and uncovered a staggering underground arsenal. The confiscated military equipment included M16 and M4 assault rifles, 9mm Glock handguns, a large quantity of ammunition and magazines, C4 explosives, fragmentation grenades, bomb-making components, ballistic vests, chemical gas masks, radio signal jammers, as well as long-range communication devices.
Investigations revealed that Sun Mingchen held Chinese and Cambodian passports, frequently traveling between Thailand and Cambodia, and possessed a pink identification card issued to non-Thai nationals. During interrogation, Sun Mingchen claimed to suffer from depression and intended to use the weapons for self-harm, denying any plans to harm others.
However, authorities stated that the source of the weapons is still under investigation, with preliminary findings indicating alleged involvement of some Thai military and police personnel in supplying firearms to Sun Mingchen.
While in custody, Sun Mingchen experienced seizures and lost consciousness in prison on May 11th, prompting an emergency transfer to a hospital. Medical personnel suspected an overdose of medication due to a congenital condition. After recovering, he was returned to prison to continue serving his sentence. Prosecutors in the Pattaya area highlighted that the swift progression of this case from arrest to sentencing in under three months demonstrated effective collaboration between law enforcement, prosecutors, and the judiciary.