As a local policeman, is it appropriate for you to take over the job of a criminal policeman?

Ye Lin narrowed his eyes slightly, "What about the others? You often take your children out. Do you often run into the same people?"

"Yes, there is a boy next door who is about the same age as Miss, and he is also taken care of by a nanny. He sees that it is easier for me to go to the park, so sometimes he will go with me. But the management of that family is strict, so he doesn't go as often as I do."

"Okay, what's the name of that place? Let's go ask."

"I only know that the last name is Du and the child is called Duoduo. I don't know his full name." The nanny shook her head.

Ye Lin glanced at Yu Haifeng, who shook his head and had nothing else to ask for the time being.

"This is my business card. If you remember anything, just call me." Ye Lin gave the babysitter a business card.

"Oh, then officer, I'm getting on the train." The babysitter said tremblingly. It was too stressful to face two policemen.

"Go ahead, and have a safe journey." Ye Lin waved his hand and said with a smile.

Looking at the figure of the little nanny leaving, Ye Lin fell into deep thought again, "Captain Yu, do you think she is really just a simple human trafficker?"

After searching for a while and finding no clues, Ye Lin began to feel a little guilty. It would be troublesome if he went in the wrong direction and delayed the rescue.

Yu Haifeng patted his shoulder and said, "Let's go. We policemen are not gods. We can only do what is most likely. The probability of it being a human trafficker is too small. If it is really a human trafficker, there is nothing we can do. Let's be open-minded."

“Do what we can.”

After hearing what Yu Haifeng said, Ye Lin became more cheerful. "Okay, let's go find that Duoduo nanny and see if she can provide anything useful."

The two returned to Longjiang No. 1. In order not to bring trouble to Duoduo's nanny, they asked the property management to ask the nanny out in the name of paying the fees.

The nanny’s surname is Jiang. She is also from another place, but not from the same place as Xiao Xiong.

When Xiao Jiang saw Ye Lin and the other two men in police uniforms, he was a little at a loss.

"Officer, I haven't done anything bad. I work as a nanny in my boss's house every day." Xiao Jiang said nervously.

"It has nothing to do with you. We just want to know some information." Ye Lin comforted her.

When Xiao Jiang heard that it had nothing to do with him, the expression on his face suddenly relaxed, "Oh, then you can ask, but you'd better be quick, I still have work to do for the host."

"Okay, let's get this straight." Ye Lin said, "Do you sometimes take Duoduo to the park to play? You know which one I'm talking about."

Xiao Jiang's expression changed slightly, and then he said frankly: "Yes, sometimes when I feel tired, I will take him with me, but not often. These owners don't know. You must not tell them, otherwise I will definitely be fired like Xiao Xiong."

"This is a question of your professional ethics, we don't care. I just want to ask you, when you went to the small park during this period, did you see any suspicious or special people observing Wang Ziyan?"

"Ah? Yanyan? Officer, I'm in charge of Duoduo." Xiao Jiang asked puzzledly.

"We know. Just answer our questions. Have you found anyone suspicious observing Yanyan?"

Xiao Jiang pondered for a while and said to himself, "Xiao Xiong has always taken care of Yan Yan. I didn't notice anything. There were just a few times when it seemed like Yan Yan's uncle saw Yan Yan, came over to say hello to her, and even chatted with Xiao Xiong for a while."

"Uncle? Are you referring to Yanyan's uncle Wang Kai?" Ye Lin's expression froze.

"I'm not sure what his name is, but he should be Yanyan's uncle. This is what Xiao Xiong said. She said she thought Mr. Xiao Wang would scold her, but unexpectedly Mr. Xiao Wang was quite open-minded. He said that children should play with other children and should not be locked in the community."

Yu Haifeng interrupted and said, "How many times have you seen him? Does he come over and say hello every time?"

"Ah, almost always. Only two or three times in total. There was only one time when I thought he didn't come over."

"Did he just leave directly when he didn't come over, or did he stop somewhere and watch?" Yu Haifeng asked.

"I was standing there watching and it was quite strange, so I told Little Bear about it. Little Bear waved at him and he left."

"Maybe he just happened to pass by." Xiao Jiang said uncertainly.

Yu Haifeng remained silent and did not comment.

"Besides Uncle Yanyan, is there anyone else you think is strange and would deliberately get close to Yanyan?" Ye Lin continued to ask.

"No, there are only people with children and some elderly people there, and there are not many strangers alone."

Xiao Jiang answered the questions quickly, mainly because he didn't want to affect other people's work, especially after Xiao Xiong was fired.

On the way back, Ye Lin asked someone to send Wang Kai's photo and Duoduo's photo over. He wanted to compare them in the surveillance video and make a judgment based on that.

When they returned to the bureau, the people who were on duty outside had not returned yet, so Ye Lin pulled Yu Haifeng over to watch the surveillance video together.

"This is the camera that happened to break that day. This is the surveillance footage from the previous month. Captain Yu, let's go together."

Yu Haifeng smiled bitterly and said, "I'm almost getting presbyopic."

"Who can escape your eagle eyes, right, Captain Yu? Hurry up." Ye Lin flattered him.

Yu Haifeng turned on the surveillance camera helplessly and began his miserable journey.

Ye Lin requested half a month of surveillance, from 9am to 11am, which is when children play.

The gray-black surveillance footage was accelerated, so there were several blurry figures walking back and forth quickly, which gave people a headache.

Ye Lin watched for two hours, and on March 2st, he finally saw a suspicious figure at the far end of the street corner.

This person pretended to smoke, one cigarette after another, and from time to time he looked towards the small park, but no one knew what he was looking at.

Ye Lin would not have any doubts based on this scene alone. After all, this is how men look around when they smoke.

The problem was that he always looked at the camera inadvertently and looked around to see if there were other cameras, which aroused Ye Lin's suspicion.

"Captain Yu, look at this man." Ye Lin took the surveillance video and showed it to Yu Haifeng.

Yu Haifeng quickly put a drop of eye drops in, otherwise he wouldn’t be able to bear it.

After watching for about 5 minutes, Yu Haifeng also felt that there was something wrong with this person.

"Looking further ahead, this person should have come more than once." Yu Haifeng said.

The two of them no longer watched separately, but watched the same screen together.

Sure enough, on February 2, this person appeared again, but in a different location, across the street corner. Yu Haifeng was careful enough to recognize him at a glance.

He continued smoking and watching the surveillance video, which lasted for about half an hour.

"This person should be checking the escape route and scouting the area. Ask the technical department to zoom in on this person."