Five off-road vehicles traveled along the highway in an evenly spaced convoy, heading toward Chiang Saen County at an unhurried pace.
Inside the vehicles, Chow Sing Sing and all the operatives gripped their weapons tightly, fully prepared for their escort assignment.
When the surveillance and tracking operation began that day, Police Colonel Withaya had provided vehicles of all different makes and models, primarily so they would blend inconspicuously into traffic.
But now Chow Sing Sing had turned surveillance into arrests, and with the operation over, he was preparing to return to the joint command centre.
Naturally, he had replaced those inconspicuous ordinary sedans with off-road vehicles better suited to the roads outside the city.
It had to be said that Wei Shali had been very supportive of this joint anti-drug operation between Hong Kong and Thailand.
He had handed over people to take down, credit to claim, intelligence, and now even five vehicles.
These off-road vehicles carried Wei Shali and the other drug traffickers through the deep mountain forests of the Golden Triangle, so their performance spoke for itself.
Chow Sing Sing simply left their original surveillance vehicles with the Thai personnel staying behind at the parking lot and the Unfinished Building.
He and his men switched to the five off-road vehicles Wei Shali had brought and escorted all the criminals back to the joint Operations Command Centre.
Bzzz! Bzzz! Bzzz!
As the convoy drove out of urban Chiang Rai City, the satellite phone Chow Sing Sing carried suddenly vibrated.
Looking at the unfamiliar number on the caller display, he narrowed his eyes slightly and immediately answered.
Barring any surprises, the people his boss had arranged should now be in position.
Chow Sing Sing did not speak right away. He merely held the satellite phone to his ear.
After all,