Sent away Lieutenant Yu, who was in a compound with his uncle, and made an appointment to drink together after this time. Liu Pengcheng looked back and saw that the trace inspection had found the "launch site" according to the angle at which the cement nail was shot into the trunk of the tree, and was digging down.

Liu Pengcheng walked over, and Li Gong of the technical room said: "Liu Bureau, you see, the criminals took advantage of the current lush vegetation to perfectly cover up the underground part of the overturning device you mentioned. Because the flowers and plants are still alive, it is impossible for us to find out this place when we survey, but after knowing this place, you can see that the soil is obviously very loose compared to the next place. ”

Liu Pengcheng asked, "Can you know the size of the underground part of this thing?" ”

Li Gong said: "Yes, but we can only estimate it based on the soil quality, that is, the size of the pit dug by the criminals. It is impossible to be particularly accurate. ”

Liu Pengcheng nodded in understanding and said, "Let's talk about an approximate number first, in this kind of case, a number is better than nothing." ”

After sending Li Gong to dig a pit, Liu Pengcheng began to look around.

In fact, he was thinking about a problem, that is, if the cement nail that appeared in the trunk of the tree was really part of the overturning device, then this thing should be a disposable thing. The little train runs every few minutes, why does he have to capsize this little train, if it is because of the little girl, then it will be a big deal.

Also, when did he bury that thing on the edge of the railroad tracks, and the mechanic couldn't see it? Where did she run away after she was buried?

Liu Pengcheng walked to the side of Li Gong's group who were busy, squatted down, and looked at the safe room, he was very surprised to find that this place, the safe room really can't be seen!

It's not because this place is a dead end, but because of a small tree on the rockery, the branches sticking out of the safe room look at the view here, and the sight is tightly blocked!

Liu Pengcheng was almost stunned, there was a toy train guarding a small place and making two shifts, no one cared about such a big safety hazard!

Liu Pengcheng beckoned a policeman and found Master Wang. Master Wang didn't know that he had found a cement nail, let alone Liu Pengcheng's speculation, and when he saw that Liu Pengcheng was asking about this, he said with a big grin: "Liu Ju, you asked about this matter, I know this, it turns out that the little tree does not have the branch that stretches out." It doesn't block the view of the safe room, that is, after the New Year,"

Liu Pengcheng asked: "How long has it been since the New Year, and you haven't taken any measures?" ”

Master Wang asked curiously, "Shall we take measures?" How do we do it? We are mechanical, not gardening. We have already passed the note to the garden department on this matter, and they don't come to deal with it, what can we do? Even if we deal with it ourselves, they still have to pick and choose to make it look good or not! Professional things or professional people do it, do you say that is the truth? ”

Liu Pengcheng felt that this was the truth, so he was speechless. A major safety hazard has become a matter of the garden department in the midst of giggling and laughing.

Liu Pengcheng noticed that there was a black cave not far from the rockery, so he asked Master Wang what kind of place it was.

Master Wang said: "There was an electric snake there, Liu Ju, you look at the monkeys, tigers, deer, and rabbits at the foot of the mountain, in fact, they are all electric, and they will move when the small train comes over, until the small train enters the tunnel over there."

This snake too, as soon as the little train came, it crawled out of the cave and spit out the letter, and then its eyes flashed. But the children like tigers very much, even big bad wolves, black bears, just don't like this snake, and scared the child to cry, on the evening newspaper of our city, the leader let the snake be demolished, and now there is an empty cave. Actually, that's no problem, which real mountain doesn't have a few caves! ”

got the information they needed, sent Master Wang away, Liu Pengcheng and Xiao Yang climbed the rockery and came to the edge of the cave.

Xiao Yang pointed to the entrance of the cave and said, "Liu Ju, look, we have found the right place." ”

Liu Pengcheng squinted his eyes and looked at the weeds lying at the entrance of the cave. He also thinks he's in the right place.

Xiao Yang walked into the mouth of the cave, looked inside, and said, "Liu Ju, this cave is very small, and neither of us can enter it." If there is a person hidden inside, it should be no more than 1.7 meters, and the weight is only 100 pounds, no matter how big it is, it can't be hidden. ”

Liu Pengcheng began to reconstruct the crime scene in his mind.

In the reluctance and cheers of the children, the small train drove back to the starting station. At this time, Suspect A quickly crawled out of the snake hole, and when he arrived at a place that he had been looking at for a long time, he buried a device on the edge of the small railway in a few clicks, and the cement nails were erected upwards and flashed with cold light.

Wait, where does this armor go after that?

Although this is the blind spot of the safe room, it is only a blind spot, and if the tree branch completely blocks the safe room from blinding, no matter what, the park will be in control long ago.

So, A is back in the cave?

Liu Pengcheng felt that this was very likely, first, he couldn't go anywhere else, and someone suddenly appeared in a place where there shouldn't be anyone, Master Wang couldn't care, no matter what, people would eat this bowl of rice. Second, being able to design a mechanical device to overturn a toy train full of children, Liu Pengcheng felt that this person should be more or less a little problematic. Maybe it's just the cat in the hole and seeing the results!

Then the train capsized, and parents climbed over the railings to find their children.

Wait, climb over the railing!

Liu Pengcheng went down the mountain and found the location of the railing closest to the scene, and there were also various cartoon images and cartoon patterns on the railing.

Of course, it has been trampled on by anxious parents.

Liu Pengcheng compared it little by little, and suddenly found that there was a cartoon pattern in the opposite direction of destruction!

What does this mean, it shows that when everyone is flipping into the wall, someone is flipping out of the wall!

Liu Pengcheng took a closer look, and there were still some black, sticky things on the little rabbit's head.

Liu Pengcheng carefully dipped a little with his hand. Twist it with your fingers and place it under your nose to sniff. A smile appeared on his face.

This is by far the biggest clue left by the suspect in addition to his height and body type!

Liu Pengcheng called Li Gong from the technical room and learned that they were about the same. Let Li Gong take a photo of the evidence here, and then sample the black thing!

Liu Pengcheng looked at his watch, it was already more than five o'clock in the afternoon. So it was decided to close the team.

However, before closing the team, he contacted the Municipal Traffic Management Bureau and sent a crane and a trailer to tow the small train back to the compound of the District Public Security Bureau.

On the way back, Xiao Yang asked Liu Pengcheng, who was looking for a radio program that he could listen to: "Liu Ju, do you have a score for this case?" ”

Liu Pengcheng said: "What's the matter, it's just smoother than I imagined." ”

Xiao Yang asked again: "Liu Ju plans to solve the case tomorrow?" ”

Liu Pengcheng said: "If you just count on me, you won't be able to solve a case." Solving a crime itself is a collaborative process. But you said that you will solve the case tomorrow, let's try it, and see what the level of comrades is! After all, I have something to do the day after tomorrow! ”

Xiao Yang looked at Liu Pengcheng, who was in a good mood, and was still confused, he followed Liu Pengcheng all the way today, except that he knew that the murderer might be a lean dwarf, he didn't see anything.