Something happened again?! Lu Chuan, who was still a little confused, was awakened in an instant, at this time, in the case of a murder case, Zhang Hui could still be called an incident, and it was conceivable what the case was.

Liu Guodong put on a police uniform, sleepless: "Another homicide? Zhang Hui nodded, but his eyes, which were also bloodshot, flashed: "It's a murder, and it's ...... Or at Qinghe Amusement Park! Forty-five minutes later, Lu Chuan stood in the same position as yesterday again.

The construction site of Qinghe Amusement Park is about 700 meters east of the main gate, and there is a fence edge near the woods.

Today's sun is very bright, but when it shines on the criminal police at the scene, I can't feel the slightest warmth.

The same place where the body was dumped, the same naked corpse, the same reporter. Zhang Fugui's face was pale, and he was a little trembling in the face of Zhang Hui's inquiry.

"It's this morning...... Because of yesterday's incident, I moved the time of today's patrol a little earlier, and the result was ......, "The cordon set up by Zhang Hui and others yesterday is still there, but there is another corpse in the open space that should have been empty."

Although Zhang Fugui worked as a janitor in the mortuary of the funeral home, he encountered two cases of throwing corpses for two consecutive days......

"Comrade policeman...... Why don't you send someone here tonight to watch? ”

"Maybe the other party will come back, or it may not be ...... "Come back?" The corners of Zhang Hui's eyes jumped when he listened. In the same place, two bodies were found for two consecutive days, which Zhang Hui had never seen or heard.

Zhang Hui has seen and participated in the investigation of a series of murder cases, but he has never experienced such a case.

Not to mention him, there are many people who have been working as criminal police officers on the scene for more than 20 years, and they have never heard of such a thing. Throwing the body again in the same place, what did the murderer think, playing with the lights and getting dark?

Or provoking the police? No matter which one it is, Lu Chuan has already begun to put on his equipment and conduct a field survey. This time, Wang Changjiang and Shen Yan came over together.

The scene had been surveyed yesterday, and nothing had changed except for one more body. The place where the murderer dumped the body was basically the same as yesterday, the naked body turned over along the wall, with abrasions on the skin and a little blood on the snow.

The neck scar is very obvious, and the victim was also strangled to death.

"Lao Wang, you do the autopsy first, and we will do the surrounding scene survey." Liu Guodong took Lu Chuan, took a look at the corpse, and began to conduct on-site investigation according to the circumferential radiation method, one person spirals outside and one person spirals inside.

Because I have done a more detailed survey yesterday, I naturally did not have any major gains. Collecting blood from the snow, the two walked around the perimeter of the fence from the main entrance.

Here, after yesterday's incident, it was also put on the cordon. Now the cordon is hanging on the ground, apparently breached.

According to normal logic, the old man who came to walk nearby should not break the cordon. Of course, according to the behavior analysis of normal people, a corpse has just been found in this vicinity, and no one should come here for a walk.

Therefore, the cordon that has been torn off now should have been done by the murderer.

"Master, I'll collect footprints and fingerprints first and see if I can find any." Liu Guodong nodded, the murderer threw the body here for the second time, and it will definitely leave traces, plus there is no destruction by people who have walked in the morning, and the possibility of collecting footprints is very high.

But in the case of fingerprints, the possibility is relatively small. Now the weather temperature is low, and most people are already wearing gloves when they go out, not to mention the murderer who threw the body.

When they did the survey yesterday, they didn't find any evidence such as fingerprints. Lu Chuan had surveyed outside the wall yesterday and had an impression of the situation on the ground.

So, now you can see the changes in the ground at a glance. The messy footprints were deeply imprinted in the snow, and there were obvious signs of hard pedaling near the base of the fence.

Taking out the ruler and camera, Lu Chuan began to take pictures. Soon, a messy but clear set of footprints was extracted.

"According to the direction of the footprints, the other party came from the west and returned the same way." In detail, footprint analysis includes two aspects, one is to analyze the basic characteristics of the footprint owner such as gender, age, height, and weight according to the shape, size, and depth of the footprint.

The other direction is footprint tracking, also known as footwork tracking, which is a dynamic footprint analysis method.

According to the morphological characteristics and footwork characteristics of the criminal's footprints, combined with investigation and interview, the comings and goings of the criminals were investigated.

Footwork tracking is an empirical science from the folk

After years of research, the identification technology of the same person identified according to the footwork has been formed after years of research and experience.

Generally speaking, it is difficult to change the characteristics of a person's footprints and walking patterns. For example, the outer eight-character, the inner eight-character, and then the compass leg and the X-shaped leg.

Superb footprint analysis can analyze people's gender, occupation, figure, habits, age, physical characteristics, etc. from the weight of footprints, gait, stride length, imaginary edges, pressure, soil, etc.

Among them, the easiest to judge is height and weight. Generally speaking, the length of the footprint is equal to one-seventh of the height, but this is only a general statement, and the specific formula is that the height is equal to the length of the footprint multiplied by 6.876.

The footprints of suspects of different ages also have characteristics of different age stages. For example, juvenile suspects have short steps, thin footprints, the distance between footprints is often irregular, the bone seams are small, the footprints have a strong sense of wholeness, and the walking route is often curved.

In most cases, young criminal suspects have large footprints, large steps, and the distance between the footprints is even, walking in a straight line.

Middle-aged suspects have different characteristics, walking steadily and slowly, and the distance between footprints will be shorter than when they were young.

The stride of the elderly suspect becomes shorter, the pressure on the heel in the footprint is heavier than that on the sole of the foot, the bone gap becomes wider, and the overall sense of the footprint becomes sparse, and there is a feeling of lightness.

At the same time, if the suspect at the scene walks in a chaotic manner and the distance between the footprints is uneven, it means that the suspect may be exhausted or has been injured.

The footprints on the snow, although messy, were deep in the heel and shallow in the forefoot, indicating that the suspect had a straight waist and good posture.

The murderer threw the body for the second time, although the pressure on the case increased sharply, but correspondingly, the murderer also left more obvious traces.

"Xiao Lu, you collect the footprints first, and I'll report the direction of the murderer's footprints to the Qin team and see if I can do some tracking."

"Okay Master, I'm done collecting this, and we'll do another survey of the surroundings." After the incident yesterday morning, all the physical evidence within a radius of one kilometer from the scene was collected.

Now go again, if there is a discovery, then there is a possibility that it is related to the murderer. For example, if the murderer smoked a cigarette after throwing the body, it would be better.

This is equivalent to the suspect himself sending himself into the bureau. However, contrary to expectations, the murderer obviously did not show such obvious flaws.