CHIANG RAI – Border Patrol officers in Mae Lao District scored a major drug bust late Wednesday night. They intercepted a large commercial cassava truck carrying a massive stash of hidden crystal methamphetamine.
Law enforcement officers tracked the suspicious vehicle through multiple districts before moving in to make the bust. The operation ended with the arrest of two suspects at a highway checkpoint.
Key Takeaways
- Who: Border Patrol Police Region 3 and local officers arrested a 42-year-old male driver and a 35-year-old female passenger.
- What: Authorities seized 58 kilograms of crystal methamphetamine hidden inside the cabin of a commercial trailer truck.
- Where: The arrest occurred at the Pa Tueng Drug Checkpoint in Mae Lao District, Chiang Rai Province.
- When: Law enforcement officers intercepted the vehicle around 11:00 PM on July 24, 2026.
- Why: Officers acted on intelligence regarding a targeted vehicle using agricultural transport as a cover for drug smuggling.
According to an official report by Chiang Mai News, Border Patrol Police Region 3 launched a targeted operation against a known smuggling route. Officers began monitoring the suspicious trailer truck as soon as it entered Mueang Chiang Rai District. Detectives shadowed the vehicle closely while coordinating with local law enforcement teams along the expected path.

The Checkpoint Search and Arrest
The truck took a detour onto Route 4033 and drove down a quiet dirt road near the Mae Hang Canal Dam. It parked in the secluded area of Wiang Chiang Rung District for about five minutes. Police suspect the drivers loaded the illegal contraband during this quick stop.
After leaving the canal, the truck drove to a local yard in Pa Sang. Workers loaded the trailer with dried cassava roots to create a legitimate cover story. The vehicle then headed back toward Mueang Chiang Rai District.
Police set up a barricade at the Pa Tueng Drug Checkpoint in Dong Mada, Mae Lao District. Officers signaled the driver to pull over as soon as the heavy vehicle approached the station.
Inside the cabin, officers identified two residents from Phayao Province. Police detained the 42-year-old driver, Mr. Rangsan, and his 35-year-old passenger, Ms. Wilaiporn.

Truck and Drugs Seized
A thorough search revealed two large white sacks hidden directly behind the passenger seats. Inside the sacks, police uncovered 58 individual plastic bags filled with a white crystalline substance. Field tests confirmed the substance was high-purity crystal methamphetamine, commonly known as ice.
Authorities immediately confiscated the 58 kilograms of crystal meth alongside the commercial trailer truck. Police officers also seized three mobile phones to search for connections to broader drug networks.
Law enforcement officers transported both suspects to the Mae Lao Police Station for formal questioning. Prosecutors charged the pair with joint possession of a Category 1 narcotic with intent to sell for commercial gain. Police continue to investigate the supply chain to identify the high-level dealers behind the shipment.
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