There were a lot of corpses found this time, and Jiang Xiran and Zhou Xiaoyi had to immediately carry out a bag-by-bag inspection, sort them out, and bring them back to the forensic dissection room for further autopsy.

As soon as they opened the black plastic bag, the stench of corpses became more pungent at the higher temperatures, instantly penetrating the masks they were wearing.

But they didn't hesitate in the slightest, and their movements were simple and swift, immediately sorting and packing each bag of corpses.

Lu Ke and Mo Yufei stood far away, and the smell that was enough to paralyze the nerves and cause transient neuromigraines stopped them.

Mo Yufei could only see the busy backs of Jiang Xiran and Zhou Xiaoyi squatting on the ground, and couldn't see the movements in their hands, and could only hear the crisp and neat conversation between the two in her ears.

"Upper limb corpse parts, the right arm intact, the right hand intact."

"Corpse parts of the lower limbs, the left leg intact, the left foot intact."

"Corpse parts of the lower limbs, the right thigh is intact."

"The pelvis is intact, and a small amount of organ tissue is found."

"Found part of the musculature of the chest and abdomen ......" Jiang Xiran just lifted the corner of the black plastic bag, and the plastic bag was torn in an instant, and a pile of human tissue spilled out.

"Gross-"

Beside him, the retching sound of a police officer from the technical team who cooperated with the forensic doctor to take pictures.

This can't be blamed on him, because the picture in front of him really challenges people's psychological limits, especially the sticky yellow fat, even Jiang Xiran, who has been through a hundred battles, can't bear to look at it directly.

She hurriedly examined it, covering a layer of evidence over the cracked black plastic bag, ready to take it back to the dissection room before making her next move.

Zhou Xiaoyi on the side didn't seem to be affected too much, he was still checking the body bag in front of him, and reported the situation on his side in a loud voice as just now: "Incomplete chest ribs and part of the spinal bones were found. ”

Jiang Xiran quickly adjusted himself, entered the working state, and opened the last body bag: "This bag is still the musculature of the chest and abdomen, and it can almost be put together into a complete torso part from the bag just now." ”

"In this way, this corpse can be pieced together in a complete way, except for the lack of the most critical skull." Zhou Xiaoyi put a layer of physical evidence bags on the outside of the black plastic bags, labeled them, and classified them.

……

Now thirty-six hours have passed since the time of the crime, and in this era of big data, there is no impermeable wall under the sky.

Even though the police have done their best to control the news of the case, it has still spread in society.

Even some videos of the police investigating the scene, some pictures of the dumping scene, and even some bad media articles have been searched on the Internet.

Public opinion has always been a pressure beyond the control of the police.

In today's society, many people lack a cool head, and even lack the ability to make independent judgments. They will only believe what they want to believe, and some unscrupulous media have seized on this and hyped it up to attract attention.

In this case, it not only caused panic in society, but also seriously affected the credibility of the police in the eyes of the public.

For criminal cases, it is even more likely that the criminal suspect will grasp the progress of the case by the police, and then there will be the possibility of hiding, fleeing, and committing the crime again.

Sure enough, Lu Ke immediately received an order from the bureau to solve the case within 24 hours.

In the office of the criminal police team of the Jing'an City Public Security Bureau, a case analysis meeting is being held urgently.

There were no lights on in the room, the curtains were closed, and although it was noon, the whole office was like night.

Only the projector hanging from the roof of the shed shot a pillar of light and hit the white curtain on the wall.

On the white screen, all the scene photos, case information, inspection reports, and even close-ups of the corpses taken by the technical team and the forensic department at the scene and in the autopsy room are being played one by one from the beginning of this murder and corpse mutilation case to the present.

The room was quiet, only Ling Zizhen played the photos while combing through all the clues he currently had to all the police officers who participated in the case analysis meeting.

After helping everyone sort out and recall the entire case, Ling Zizhen lightly clicked the mouse, and a group of footprints collected at the abandoned construction site appeared on the white screen.

He spoke slowly and said seriously: "This is a group of footprints that have just been collected at the scene of the corpse dumping, because the number of corpses thrown this time is very huge, and the corpses are dumped during the day, and the murderer's entire corpse dumping process is very anxious and hurried. According to the analysis of optical footprints, it was found that the front and back of these groups of footprints were of different depths, and the one-way footprints were all shallow in front and deep in the back, which showed that when the murderer was walking, the center of gravity of the whole body was concentrated in the heel position, which was very consistent with the footprint characteristics of the heavy object. ”

Lu Ke nodded and added: "The footprints of the murderer appeared at the scene of the dumping of the body this time, which is the most important clue in the case so far." ”

"That's right, the physical characteristics of the murderer can be directly inferred from this footprint. This is a set of 42 yards of footprints, the pace spacing is less than 60 centimeters, after the footprint test and stride length reasoning, the murderer's height should be about 1.7 meters. ”

After listening to Ling Zizhen's words, Mo Yufei couldn't help but think of what his father often said to himself - there is no perfect crime in the world, as long as it is done by people, it will definitely leave traces.

Fingerprints can be hidden with gloves, but footprints can leave traces even with shoe covers. In modern criminal investigation technology, any clue can become the key to solving the case.

When Mo Yufei was studying at the Police Academy, she specialized in learning footprint traces and stride length reasoning.

When people walk, the sole must be worn, and the particle structure of the sole will be deformed, cracked, peeled off and other losses, forming a defective feature, the shape and characteristics of this feature can be reflected through the sole of the wearing, and is not affected by the sole material.

It is determined by factors such as the structure of the human foot, the strength of the solar surface, the walking habits and movements, and the mode of movement. As a result, wear characteristics appear on all shoes worn by a person, and although the clarity is different, it is also repeatable.

From an anatomical point of view, each part of the human body organs of a normal person has a certain proportion, and in ancient China, there was a saying of "standing seven sitting on five plates and three", that is, the head length is one unit, the height is seven units, and the foot length is basically the same as the head length. Therefore, the approximate height of a person can be deduced from the footprints, and the length of the forearm is equal to the length of the foot, and the arm span is equal to the height.

So by the width of the footprint, the size of a person can be inferred. Fat people have low arches and wide and plump soles; People with a thin body have a taller arch of their feet and a thinner foot shape.

For the footprints of small feet wearing large shoes or big feet wearing small shoes, the same can be inferred by step length, step width, step angle and center of gravity.

Due to the general difference between the north and the south, the step size is × 6.876 in the north and 6.9 or 7 in the south × when calculating the step size.

More than 175cm, h = single step length + 1/3 single footprint length.

165~175cm, h = single step length + 1/2 single footprint length.

Below 165cm, h = single step length + 2/3 single footprint length.

Then calculate the weight according to the height: height (cm) - 110 = standard weight (kg) (women - 2.5kg) plus or minus 10% according to body posture.

Thinking of this, Mo Yufei sincerely admired the group of young forensic technical police in front of her......