Luo Feng and Wang Xiaoshan followed the other police brothers to eat takeout in the police station, each with a fast food box. There is no way, the time for the snitch case is too tight, because the gang may commit a crime at any time, and they must find their traces as soon as possible, so they can only work overtime. In particular, this case involves several cities, and the Central Police Department also attaches great importance to it.

However, at this time, Luo Feng had no appetite at all, and there seemed to be a lot of clues, but there was no substantial progress at all.

Luo Feng casually ate two bites of food and walked out of the hall of the police station, intending to wander around the courtyard. Under normal circumstances, the cases filed by the police station are handled by the district-level police station, and the cases that go to the city-level branch where Qin'an is located are relatively serious cases, so there are generally few people who come to work in the city bureau. Luo Feng looked up, many rooms in the police building were still lit, no matter what industry overtime seemed to be a norm, especially the police who had to be on call 24 hours a day.

From a distance, I saw Lao Zhang, the gate guard who was preparing to take over the shift, "Lao Zhang is good." While greeting him, he walked to Lao Zhang's side.

"Yo, the little madman hasn't left yet? It seems that you are very persistent in taking a detective certificate, and after graduating from college, you can directly take the police exam, and what kind of detective certificate will you take. ”

"No, no." Luo Feng hurriedly waved his hand, "With my small body, I can only do mental work, and I can't hold it up if I charge into battle with a gun." ”

"It's really a little thinner." Lao Zhang also smiled, "Don't talk nonsense with you, I have to quickly sort out the registration book, the successor is about to arrive." ”

After all, the city bureau is a relatively important secrecy organ, and in addition to the staff, ordinary people must register their names and ID cards before they can enter and exit, and when registering, they must also explain who they are looking for to do something. Managing the entry and exit registration is also one of Lao Zhang's jobs.

Looking at the thick registration book, Luo Feng began to tease Lao Zhang, "Generally, the report goes to the district bureau, why do you have so many foreign populations in your city bureau?" ”

"The higher the level, the more trouble there is. Today, a middle-aged man even came over to ask for directions. I'm almost going to be a community service station here. "If they knew that the man who asked for directions today was Xu Jianguo, who they were trying to trace, they would definitely be repentant. As he was saying this, a small note fell out of the entry and exit register in Lao Zhang's hand.

Lao Zhang glanced at Luo Feng, Luo Feng was unmoved, Lao Zhang glanced at Luo Feng again, Luo Feng was still motionless.

"Big madman, can you stretch out your precious hand and help pick it up." Lao Zhang was furious.

"You said it earlier." Luo Feng squatted down and picked up the small note on the ground, "Just give me a look and don't speak, I thought your eyes were uncomfortable." What is this? What are you doing in the register? ”

"I don't know what I didn't put in the register. You help me see what is written on it. Have my hands full. The document Lao Zhang was holding in his hand was like a hill.

"A string of numbers, is it the winning number you bought for the welfare lottery?" Saying that, Luo Feng spread out the note in front of Lao Zhang's eyes, "No, take a look." ”

Just when Lao Zhang was squinting at the small note, Luo Feng suddenly saw that Lao Zhang actually had a string of similar numbers on his body.

It was Lao Zhang's police ID, and he hung it around his neck.

Alarm! This is the police siren! Luo Feng took back the small note, and carefully compared the number on the small note with Lao Zhang's police number, both in terms of numbers and arrangement.

"Lao Zhang, this is your alarm call. Whose warning is this? Luo Feng put the note in front of Lao Zhang's eyes again.

"You seem to be a warning call."

"Who is so bored to write you a warning call? Whose siren is this? Can you recognize it? ”

"It's a bit like Li Long's, I don't remember it very clearly when I'm old, and I have to check the roster to be sure."

Li Long? Middle-aged men? An idea suddenly popped into Luo Feng's mind that shocked even himself.

The policeman who was robbed of a gun by Xu Jianguo and held hostage into the elevator that day was Li Long. From the map hidden in the rented house to the small note stuffed into the entry and exit register of the police station, it seems that Xu Jianguo has been trying to find a way to get in touch with the police, but he may have been monitored by the snitch in some way and did not dare to contact the police directly.

Luo Feng looked up, then pointed to a surveillance camera and asked, "Where can I watch this video?" ”

"It's easy, I'll show you when I put this stack of documents away."

"What a paperwork to organize! I'll let Qin An help you sort it out! ”

Lao Zhang smiled helplessly, Luo Feng, this kid was investigating the case and went crazy. I had to put down the information in my hand first.

Directly pulled the surveillance video to the time period when the middle-aged man came to ask for directions today, Luo Feng recognized it at a glance, that person was Xu Jianguo, and when he asked for directions, he quietly stuffed a small note with Li Long's police number into the entry and exit registration book.

Qin An took Luo Feng and Wang Xiaoshan to the monitoring room of the city bureau, Wang Xiaoshan, who entered this monitoring room for the first time, was a little frightened, in a room as big as a basketball court, the walls were densely packed with monitors, this is a house enclosed with monitors.

Luo Feng used to come here with his father, who was a police officer, when he was a child, his mother was in the hospital to rescue the patients sent from the scene of the car accident, and his father was also investigating an important case, so he could only take Luo Feng to the police station. Coming here again, there was a moment that reminded Luo Feng of his father.

This is not an ordinary monitoring room, he is not only monitoring the police building, all the video surveillance ports in the city, you can see here, every intersection, subway exit, bus stop...... It can be said that as long as you have appeared in public, you must have left your footage here.

Through the city's surveillance search, it can be clearly seen that after Xu Jianguo left the police station, he took the bus and subway, and finally went to Wanghai Park.

There are no cameras in Wanghai Park, probably the thieves also knew this and asked Xu Jianguo to wait here.

I only saw Xu Jianguo enter Wanghai Park, but I never saw him come out again, and the clues I just found seemed to be broken again.

"Did he camp in the park? Or did you dig a hole in the ground? "Obviously he is at the door of the police station today, so let him come freely and go freely, looking at Xu Jianguo's face on the monitor, Qin An was very unwilling.

Several policemen have already rushed to Wanghai Park in the form of plain clothes, preparing to conduct a comprehensive search of Wanghai Park, hoping to find the clues left by Xu Jianguo. If Xu Jianguo really wants to contact the police, it is very likely that he will leave clues similar to Lao Zhang's small note in Wanghai Park.