PoliceThanyaburi Police Station arrestedthe "truck driver"of a six-wheeled vehicle who broke through the checkpoint and collided with a police motorcycle, resulting in death; facing serious chargesof "killing a police officer while on duty."Nearlychaoticwhen the suspect resisted and shouted loudly"I'm not guilty."
In the case of the accident where a six-wheeled truck ran a checkpoint and sideswiped a police motorcycle, crashing into a lamppost, causingSergeant Major Chaiwat Kongudom** Head of the Crime Division at Thanyaburi Police Station, to die, the truck driver used the confusionchaosto flee before abandoning the vehicle and sending a farewell message to his mother via chat. The incident occurred on Kanchanaphisek Road (No. 9) near Thanyaburi checkpoint at kilometer 26, Pathum Thani Province, in the evening of 20 March, as previously reported.
Update on 21 March 2026 at 09:00, investigators took custody of both involved vehicles: the police shield motorcycle 31612 and the six-wheeled truck,a six-wheelerwhite ISUZU truck with Pathum Thani license plates, to store at Lam Luk Ka Police Station.
Upon detailed inspection, the right side of the six-wheeled truck showed deep scrapes matching the position of the patrol motorcycle's handlebar that was sideswiped and toppled. Additionally, the right rear wheel had visible oil stains. At the scene, friends and relatives of the deceased began placing offerings to invite the spirit, according to local belief.six-wheeled truck. The right rear wheel had clear oil stains. At the accident site, groups of friends and relatives of the deceased brought offerings to invite the spirit according to their beliefs.
Sergeant Major Thongchai Boonkaen, head of the Crime Division at Thanyaburi Police Station (assisting investigation), revealed that he was very close to the deceased, who was his senior and mentor since he started training at Thanyaburi Police Station. He described the deceased as very kind and beloved by colleagues, always offering advice and guidance. They had spoken just two days prior, and he expressed deep sorrow over the sudden loss.
Later, at 12:00 on the same day, Police Lieutenant Colonel Thawatchai Rattanapahu, deputy head of investigations at Thanyaburi Police Station, along with the investigative team, arrested Suphot "Lek" Chaiyo, 29, the truck driver, under an arrest warrant from Thanyaburi Provincial Court for murder and attempted murder of a police officer. He was apprehended at a worker's residence in Village No. 15, Bueng Kham Phroi Subdistrict, Lam Luk Ka District, Pathum Thani Province.
While officers were reading the warrant, Suphot resisted by attempting to flee, forcing officers to quickly restrain and handcuff him. During custody, he continued to shout his innocence, claiming the checkpoint was not properly established according to regulations. Officers had to carry him into a pickup truck to transport him to Lam Luk Ka Police Station for interrogation.
Suphot confessed to driving the truck on the day of the incident, claiming that while returning to the company, he felt unsafe seeing the checkpoint due to unclear signage, so he decided to flee toward the factory. He said he braked hard, causing the rear of the truck to skid uncontrollably and was unaware when police began pursuing him, alleging they tried to drive to avoid being seen by him.
However, Pol. Maj. Gen. Peeraphon Chotiksethien, chief of Pathum Thani Provincial Police, stated he ordered four serious charges: murder and attempted murder of an officer while on duty, assaulting and resisting officers with violence, and property damage.
The body of Sergeant Major Chaiwat Kongudom, the deceased officer, will be laid in state for one night at Khian Khet Temple, Pathum Thani Province, before being transported to his hometown in Kuchinarai District, Kalasin Province, for religious funeral rites.