Dai Li looked carefully. On one of the Thai's arms, except for a tattoo, there were several red dots.
These look like scars made by injections, which are quite fresh. Is this guy coming from the hospital? Dai Li suddenly felt that something was wrong.
He took his phone and looked up the official page for the Road Cycling Race around Juyongguan, then searched through it cautiously. After a while, he raised his head.
This race has a urine test; the participants shouldn't have received any injections recently, otherwise they won't pass the examination.
Dai Li pretended to play with his phone while he continued observing the Thais. Several minutes later, another Thai also rolled up his sleeves, revealing his arm. The same three red dots could be seen on his arm.
Another one? Dai Li squinted his eyes. He had made a wild guess.