Zhou Ning turned his head sharply and saw Da Zhao holding a physical evidence bag and running over quickly.

Running closer, Zhou Ning stared at the physical evidence bag and found that there was a black thing inside, which seemed to be bloodstains, but this thing had a few protruding parts, and there were holes on it, and after careful observation, Zhou Ning raised his head suddenly.

"Latex gloves? Where did you find it? ”

Da Zhao pointed to a huge bucket on the west wall of the courtyard and said:

"I followed the footprints, to the south to investigate, found that there are two dilapidated half-cut waste oil drums here, there are a lot of firewood and branches inserted in them, I took out the firewood and branches, and I saw the broken latex gloves below, there are cuts at the root of the little finger of the glove and a ball of paper, it is estimated that the blood is wiped, and I also put it up."

Zhou Ning shook the latex gloves, the gloves were unfolded inside, and sure enough, the base of the little finger was cut, but it was all soaked in black blood.

"Great, let's see if the person who sent it for testing is gone, come back and take this, send it for testing directly, even if there is no blood stain in the cut position, there will be sweat stains and dander on the inside of the latex gloves, if you are lucky, you can find the murderer's DNA, let Sister Cui carefully sample and compare."

Da Zhao smiled.

"The phone has been called early, Xiaobai has already gone back, and I will call Sister Cui in a while, but I remember that the dagger stuck in the deceased's back has a hand guard, how can it cut the gloves?"

Zhou Ning found the picture of the murder weapon and looked at it carefully.

"The gauntlet does exist, but it is less than a centimeter wide, and if the force of the stab is too strong to stop the hand from sliding, or if the gauntlet is not smooth, it can cut the glove, and if blood stains can be detected, the evidence is perfect."

Xu Dayuan waved his hand.

"Less nonsense, go back and eat first, and then have a second autopsy."

......

An hour later, everyone returned to the Hai'an City Criminal Police Team.

After a simple meal, Zhou Ning took people to the forensic autopsy room, the hardware conditions of Hai'an City are not as good as Qidong and Rudong City, although it is also a working area set up in the criminal police team, the space is very tight, and there is no recording equipment.

In the morning, Liu Yongxin had already asked people to install the scanning equipment, connect the system software, and the LED light that Zhou Ning was used to was also installed and placed on one side.

Bai Hua asked a lot of questions, very curious about such a new equipment, Zhou Ning did not hide his secrets, and explained the application of software in dissection, after all, the city bureau organized the backlog of cases to clean up, and another focus is to promote the application of software to improve the detection ability of various sub-bureaus and county and city bureaus.

The child's corpse was sent first, the corpse was in a good state, there was no large-scale decomposition caused by repeated freezing, Zhou Ning surrounded the corpse and carefully observed it from head to toe.

Zhu Xingxing cooperated with Xia Momo to X-ray the corpse, from the operation of the machine to the use of pictures, Xia Momo explained to Bai Hua in a low voice.

Zhou Ning, on the other side, checked the autopsy report again, and found that Bai Hua's autopsy was very meticulous, and the boy's perianal examination was not spared, as for the mouth, nose and neck, DNA collection was also carried out, but there was no special discovery, but in the deceased's bronchi, a few fibers were found.

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【New Surgical Treatment】 【】

"Bai Forensic Doctor, do you think that the deceased Wang Jiahan was blocked from breathing by a soft knitted fabric such as a pillow, causing mechanical suffocation, and then thrown into the water of the pickle jar?"

White Birch nodded.

"When we investigated the scene, we found a 60-centimeter-diameter plush pillow, which was filled with fibers, which were consistent with the fibers found in the deceased's bronchi, and found a piece of pale yellow liquid residue on the plush pillow, which belonged to the deceased Wang Jiahan after DNA comparison."

Zhou Ning snorted, the examination of the white birch is still very careful, and the fibers are found in the bronchi, which is rarely so meticulous in ordinary people.

Seeing the inspection of the nail extract attached to the back, Zhou Ning took a look, and sure enough, the deceased's nails had been cut off against the edges, but there was no effective finding on this.

Zhu Xingxing and the others were all around, and it was a little strange to see that Zhou Ning had not started to dissect for a long time, but no one interrupted Zhou Ning's observation.

When he saw Wang Jiahan's toes, Zhou Ning waved his hand to Zhu Xingxing behind him, Zhu Xingxing quickly moved the LED light over, grabbed the rocker arm, Zhou Ning approached the deceased's toenails, and there seemed to be residues in the nails of the second toe of his left foot.

Da Zhao's eyes are good, he also saw the residue, and hurriedly held the camera closer, so the white birch also hurriedly came around, Zhou Ning gently scraped it with elbow tweezers, and extracted a little black-brown substance, and there seemed to be an extremely fine hair.

Zhu Xingxing handed over the collection box, Zhou Ning directly threw the tweezers to her, and then picked up another tweezers to check the other toes, but this time there was nothing to find, and Zhou Ning turned around and cut off the edges of all the toenails to keep the sample.

The white birch was a little embarrassed, looking at the extract found, and for a while he couldn't tell it.

"Is this bloodstained?"

Zhou Ning shook his head.

"It looks like skin residue, the time of the crime is summer, the human body metabolism is fast, many people take a shower every day, but the thorough cleaning of the skin is not done every time, leave a sample and send it for testing, and you will know what the specific test is."

After speaking, he returned to the side of the dissecting table and motioned for Da Zhao to start recording an overview of the video, and Zhou Ning carefully examined all the organs that had been dissected, as well as the various states.

Bai Hua watched his movements, listened to his analysis and judgment, and completely lost his contempt at the case analysis meeting.

After doing all this, Zhou Ning let go of his hand, Zhu Xingxing hurriedly took over, cleaned and stitched, and when everything was done, Da Zhao turned off the recording system.

Zhou Ning then said:

"The deceased was only two years old, and the reaction of adults is different, when he is awakened or unwell, the knee-jerk reaction is to use both hands and feet, and it is August, even if he sleeps with a thin quilt, he is likely to kick the quilt, so mark these samples and explain the extraction requirements clearly to Sister Cui."

As he was talking, He Dongmei's body was delivered, Zhou Ning walked over and found that He Dongmei looked at it from the front, but there was an extremely small wound in the middle of the third and fourth ribs, and it seemed that the dagger had pierced very deeply, directly piercing the body.

"Is the murder weapon here, or is it kept in the evidence room?"

"There's going to be a second autopsy here, and I've already had the physical evidence sent over, right here."

As he spoke, Bai Hua stepped to the side and brought over a physical evidence bag, which could be seen in the form of the dagger inside without opening it.

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【New Surgical Treatment】 【】

Zhou Ning took advantage of the gap and looked at Bai Hua's autopsy report, and sure enough, like the other deceased, the various autopsies of this one were also very careful, and there was a trace of congestion on the back, which made Zhou Ning look at it twice.

Da Zhao took it over, and hurriedly gave the data after careful measurement.

"The total length of the dagger is 26.6 cm, the gauntlet is 9.2 cm long from the bottom of the handle, the blade is 17.4 cm long, the blade is 4.26 cm wide at its widest point, the single edge, 4.2 cm below the blade has a zigzag setting, and there is a blood groove on the side of the dagger."

Zhou Ning measured the distance from the deceased's back to his chest, 17.7 centimeters, if the deceased was lying on his stomach, in the case of being stabbed, the chest was squeezed, and it could indeed be pierced from the front.

Under Zhou Ning's gesture, several people stepped forward and turned the deceased's body over, and the wound was exposed at this time, and sure enough, the back looked even more tragic.

"Let's scan it first, and then we will analyze it, scan it in this state, and see if there is any damage on the thoracic side of the third or fourth rib."

Zhu Xingxing and they moved, and a three-dimensional image was presented, Xia Momo enlarged the image, and sure enough, at the junction of the three or four ribs, the existence of bone cracks was only very slight.

Looking at the image, Zhou Ning closed his eyes slightly, and it can be clearly seen in the image that the dagger is pierced vertically, according to the position of the glove cut, the murderer is chasing the deceased behind, grabbing the dagger with his backhand, and stabbing directly into the back of the deceased's heart after the deceased falls or is knocked down by the murderer.

However, the position of this piercing is too accurate, even a professional cannot guarantee that in the state of exercise, directly find the middle of the three or four ribs, this knife directly pierced the heart.

"The wounds between the three or four intercostal parts of the deceased's chest were 1.1 centimeters long, and the position of the back piercing was 90 degrees perpendicular, and the dagger pierced horizontally into the middle of the three or four ribs."

Da Zhao shook his fat face and said in surprise from the camera:

"Is that accurate?"

Zhou Ning didn't answer, and took Zhu Xingxing to carefully observe the body surface of the deceased, and of course turned the deceased over, and found that the deceased's knees, elbows, wrists, and jaws were all bruised.

In the area of the right kidney behind the deceased, there is a red bruise mark, which looks like a footprint, but it is very light.

"It seems that the deceased was kicked down from behind by the murderer, and then pounced on it and stabbed him in the heart to death.

Zhou Ning glanced at Liu Yongxin, who was measuring.

"The length of the shoe print is 29.5 cm, Da Zhao, you take a photo, let Xiaoqu deal with it, how do I think, it seems that I can see a little trace of the pattern."

Shirakaba stepped closer and took a closer look at the mark on the deceased's back.

"When the autopsy was performed before, this mark was not so clear, it was a faint dark red, and the boundary was not clear, and I didn't find that it was a trace of a kick."

Zhou Ning smiled, this point, in fact, he wanted to say it just now.

"Don't be depressed, many times, the bruises cannot be seen during the first autopsy, and with the freezing of the corpse, there will be a second thaw, these marks will be clearer, my master and they did not have such conditions before, they were dissected in the morgue, this is their experience summary."

Liu Yongxin nodded.

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【New Surgical Treatment】 【】

"The conditions were difficult before, and everything happened before."

The persuasion of the two made Bai Hua breathe a sigh of relief, and Zhou Ning continued:

"It seems that the shoe size of this murderer is between 43-44, is Xiaoqu here?"

Xia Momo raised her hand.

"Don't look for him, I'll do the same, Da Zhao send it to me, I'll adjust the contrast color of the picture for you now."

Da Zhao ran over and transmitted the picture to Xia Momo, Xia Momo operated on the computer, as if by magic, and in a moment the trace was adjusted to a contrasting brown, so that the pattern was more obvious.

Da Zhao also found the photo of the shoe prints collected on the soil, Xia Momo concocted it in the same way, and put the two pictures together for comparison, Zhou Ning saw the pattern on it and nodded vigorously.

"It's the same person."