Actually, the train police were also looking for someone, because after Rong Yan got on the train, besides buying a ticket supplement, she also told the train police about her suspicion that there were human traffickers on the train.
Of course, the emphasis was on suspicion, and it would be best if they could help search, but if not, it was also okay, since she was not certain after all.
However, she found a spot in the train dining car to redraw a map to give to the train police, hoping it would be of some help.
Of course, in order not to alert the traffickers, the train police were very careful during their search.
As for each entry and exit of the train, the conductor had asked the attendants to keep an eye out for any suspicious individuals getting on or off.
The difficulty of Rong Yan's search was quite high, especially since it was already night, and each carriage was too dimly lit.
However, she had no choice but to search.