Department of Psychology Forensic

Chapter 103
"The identity of the victim must be determined as soon as possible. This case has happened for several days, and it is still an important building such as the cross-sea bridge. An explanation must be given to the public as soon as possible."

There was no change in expression on Ma Yan's face, and his tone was even and steady, but it was like this, conveying a strong sense of majesty.

He was a criminal policeman, and he was the captain of the criminal police team in his early years. He led his subordinates and solved many cases.

With the improvement of age and qualifications, his position gradually became higher and higher, and he dealt with more and more matters. He gradually retreated from the front line, and finally became only involved in the special case meeting and not involved in the investigation of the case. .

But this does not mean that he has lost the ability and sense of smell to solve the case. After Xia Yan introduced the case to this extent, he clearly understood that the identity of the victim in this case is extremely important. Perhaps, this is the purpose of the murderer's dismemberment.

"continue."

Ma Yan gave Xia Yan a look to signal Xia Yan to continue.

"Several days have passed since the body dumping case at the cross-sea bridge. Since we solved the puppet case, we have collected information on missing persons across the city. This has also allowed us to successfully find the victim of the puppet case. However, up to now, we have not received any news about the disappearance, so we suspect that the victim may be from another city." Xia Yan stated the result that the criminal police team agreed upon after discussion.

"If the population is from outside the city, the investigation will be more troublesome. As you said just now, the tattoo artist did not know the name of the deceased. If the investigation area is extended to the whole province or even the whole country, it will be tantamount to finding a needle in a haystack. A look of worry flashed in Qin Wangde's eyes. He knew that the possibility was very high, and suddenly felt that this case was very difficult.

"We are still worried about more troublesome things." Xia Yan took a deep breath and said, "The place where the murderer threw his body for the second time was at Jianghai North Station. Now we don't know whether he did it on purpose or left with the trend. If it is for this, there may be some intentions in it, but if it is not so complicated, it will be even more troublesome if you just throw the body and leave by high-speed train!"

"No matter how troublesome it is, the murder case must be solved, and the murderer must be brought to justice!" Ma Yan interrupted suddenly.

"Understood!" Xia Yan nodded and said, "It's just that the process of solving the case is troublesome. Please rest assured, Director, we will definitely solve the case!"

After Xia Yan finished speaking, he looked in Cui Jun's direction, his eyes revealing a look of pleading for help.

Immediately, Cui Jun understood, stood up, and walked towards the whiteboard.

"We have a few more discoveries at our forensic center."

Cui Jun's voice sounded slowly, helping Xia Yan smooth things over. He could tell that under the situation just now, Xia Yan was under a lot of pressure.

"When we inspected the victim's body, we found that there were almost no corpse spots on the body."

"Everyone should know the mechanism of corpse plaque formation. After the body dies, the permeability of the blood vessels increases, and the red blood cells will seep out of the blood vessels and infiltrate into the soft tissue. Due to the effect of gravity, red scars will be formed on the lower uncompressed parts of the corpse. pattern."

"However, if the deceased is dismembered shortly after death, blood will flow out from the ruptured large blood vessels, and the blood in the body will be greatly reduced, and there will be signs of inconspicuous corpse spots."

"So, we deduce that the victim was dismembered immediately after being killed!"

Cui Jun paused slightly, and continued: "This shows that the victim died indoors."

"Ah."

Ma Yan nodded, he understood the truth, the test result was indeed very detailed, but he felt that it was useless for the time being.

Cui Jun seemed to have seen through Ma Yan's thoughts, smiled slightly, and said: "The way the victim was dismembered is very unique. From the skin to the muscle, every part is cut just right. The articular cartilage that connects the bones, the whole body was dismembered without any broken bones."

"No broken bones?" Ma Yan's face suddenly changed, and even Qin Wangde next to him became serious.

"Yes, there is no broken bone. Even if the torso is divided into four parts, it is cut at the gap between the spinal bones. According to the shape of the section of the broken end, I judge that the murder weapon used by the murderer to dissect the corpse is light, smooth and sharp. Knives." Cui Jun explained.

"What is that?" Ma Yan hurriedly asked, "Do you have any tools for doubt?"

"Yes." Cui Jun nodded, with a serious face, and said in a deep voice: "I suspect that the dissection tool is a scalpel, maybe a scalpel used by a doctor for surgery, or a scalpel used by a forensic doctor. The tool of possibility is it."

For a moment, the scene was deadly silent.

Zhou Zheng once said this in a joking tone at the scene, but not many people heard it. The person who heard it on the cross-sea bridge was Xia Yan, and the person who heard it at the North Railway Station was Zhao Lei.

Most people still don't know!

Now that Cui Jun talked about such a speculation on a formal occasion like the project meeting, it is equivalent to telling everyone the conclusion, but there is still no sufficient evidence to support it.

Everyone's heart is much heavier.

Whether it is a doctor or a forensic doctor, committing a murder and becoming a murderer is not what they want to see.

"Old Cui, what do you want to say, try to say as clearly as possible." Qin Wangde said slowly, he is too familiar with Cui Jun, he can see through this circle of speech at a glance, just waiting for him to take the initiative to ask questions Behavior.

"The victim's heart had dense bleeding points, but the chest cavity was not damaged during his lifetime. Therefore, I speculate that the cause of death was mechanical asphyxia."

Cui Jun glanced in Qin Wangde's direction, but he didn't answer the latter's words directly, but still talked about what the autopsy found on his own.

"However, although the corpses died of mechanical asphyxiation, the limbs and internal organs have obvious signs of asphyxia, but due to the lack of a head, there is not much indicative evidence for a decisive judgment on the cause of death."

"I guess the murderer may still have his head!"

"After we find the murderer, we can conduct further reexaminations, and combine the murderer's statement to give the most definite cause of death."

"Based on the above forensic identification conclusion..."

Cui Jun suddenly paused, his eyes fell on Qin Wangde, and he said in a serious tone.

"The victim knew or was familiar with the murderer. She died indoors. She may have been strangled to death, or strangled to death, or smothered to death. It was a mechanical suffocation death. The murderer was dismembered immediately after death. The murderer had the ability to Conditions for finding dissection tools at your fingertips."

"The murderer can find a scalpel indoors..." Ma Yan's pupils contracted violently, and suddenly realized the serious problem, he widened his eyes and said, "Old Cui, what you mean is..."

"Operating room!" Qin Wangde almost blurted out.

"Could it be a medical accident?" Ma Yan frowned, and now that there was a new breakthrough, he was a little at a loss, and he said puzzledly: "Even if he died during the operation, it wouldn't be necessary to kill and dismember the body! "

"This is also an important reason why it is difficult for me to determine the exact location." Cui Jun said with serious eyes: "I have checked the body parts of the deceased. Except for the cutting marks of dismemberment, there are no extra incisions, and there are no incisions on the whole body. Life reaction, currently there is no suitable indication for surgery, not to mention that the cause of death is very likely to be mechanical asphyxiation, so I think the possibility of more than 95% is murder, not an accident during the medical process.”

"Old Cui, your discovery is very valuable. Have you passed the criminal police team yet?" Ma Yan's face was stern, and he became more and more aware that this case was not simple. It is not simple, and may lead to a series of unknown things.

"Based on what I said above, I don't agree with Xia Yan's final inference. I think the murderer is a person from Jianghai City. He has a fixed residence or a private place where he can dissect the corpse. He can easily get a scalpel and dissect it with him. It can be seen that he is very familiar with human joints, so such skilled technology must require experience as accumulation, he will have a stable job, if he abandons his job and leaves, then we will definitely have news , just because there is nothing, it means that the murderer is still in Jianghai City." Cui Jun analyzed, his words attracted the attention of the scene, and his eyes were full of unbelievable light.

It's no wonder that everyone at the scene had long-seen thoughts.

It is so rare!
Among the criminal policemen sitting at the scene, only a few old policemen had witnessed Cui Jun's push, and that was a story many years ago.

Since that incident, Cui Jun seemed to have closed his heart. Not only did he not easily accept the transferred interns, he hardly trusted other forensic practitioners, and his words and deeds became much meaner. More importantly, Well, every time he does a large-scale autopsy, he will only give a dry forensic report, and will not express any thoughts or inferences of his own.

It's different now.

Cui Jun began to talk about his views.

Still pointed out the problem directly.

Qin Wangde stared at Cui Jun with complicated eyes. He hadn't seen this old friend glow like this for a long time, but at the same time, he saw the pain deep in the latter's eyes.

These changes all happened after Li Yanyan's accident. It is inevitable that people will feel that the reason for the changes is Li Yanyan.

This made him inexplicably distressed.

"As expected of a master!"

Zhou Zheng was sitting on a chair, watching Cui Jun's analysis and reasoning, with a slight smile on his lips.

These were all things he had just thought about in his mind, but he didn't expect Master to say all of them.

Then the identity of the suspect is ready to be revealed.

Zhou Zheng's eyes were shining brightly, and he felt that the case was about to be solved. He thought that after the case was solved, there would be no backlog of cases in the Municipal Bureau, and he felt a sense of relief.

"Is there any more?" Ma Yan asked.

"No more." Cui Jun shook his head and said, "The above is all the content of our forensic medicine center's investigation."

"Then as long as we have confirmed the source of the corpse, we can start with the victim's social relationship, and those who meet the characteristics may be criminal suspects." Ma Yan's thoughts turned accordingly.

"Horse Bureau, don't bother!"

At this moment, Zhou Zheng raised his hand suddenly, his eyes were firm, and he walked straight to the front of the stage without waiting for Ma Yan to reply.

Zhou Zheng's behavior made everyone in the audience, including Cui Jun, stunned. Puzzled eyes focused on him, not knowing what the newcomer wanted to say.

"Zhou Zheng, aren't you on vacation?" Ma Yan's eyes were obviously startled when he saw Zhou Zheng, and he turned his head to look at Qin Wangde next to him, and asked, "Old Qin, didn't you give him a vacation?"

"Let it go!" Qin Wangde smiled helplessly. When he entered the criminal police office, he noticed Zhou Zheng sitting in the corner.

"I took the initiative to come to work." Zhou Zheng said solemnly: "About this case, I suddenly thought of a method."

"what way?"

Ma Yan raised his hand and rubbed his forehead, he felt a little headache.

He still clearly remembered the conversation with Fan Guoliang. The condition for successfully cracking the puppet case was to give Zhou Zheng a period of vacation, so that Zhou Zheng could pass the exam smoothly and then formally join the City Bureau Forensic Medicine Center.

For such a condition, he didn't feel anything, just regarded it as a relationship with Fan Guoliang.

After all, Professor Fan Guoliang has helped solve many difficult cases, and he has accumulated a lot of achievements over the years.

But now Zhou Zheng came out to work by himself!

This is not a big deal, but when he troubles Fan Guoliang again in the future, he will feel a sense of inadequacy. It feels like he is not doing his job well enough to fulfill the requirements he promised to Fan Guoliang.

"In the process of traditional criminal investigation, it is first necessary to determine the identity of the victim, and then conduct an investigation through the victim's social relationship. Once the identity of the victim cannot be confirmed, the investigation will be blocked. If this is the case, then we can try to reverse it Follow the path, first investigate the identity of the murderer, and then follow the trend to find the victim." Zhou Zheng's brain quickly thought, and before there are enough clues, criminal psychology is not very useful, after all, it is not magic, and it cannot be done out of thin air. Imagine a suspect, but with sufficient clues, criminal psychology can draw many conclusions that traditional criminal investigation cannot find.

"You want to make a portrait of the suspect?" Ma Yan immediately realized what was going on. He had also dealt with Fan Guoliang a lot. Tell them the name of the suspect.

"Incomplete portrait."

Zhou Zheng shook his head. Now he is far behind the teacher in terms of portraiture ability. He is very clear about this problem, and Professor Fan also made it very clear that it is the lack of experience.

I know the truth, but it is difficult to do it.

It's like he has a lot of recipes in his head, but he has never cooked the dishes. Even if he follows the process, it is still difficult to guarantee the taste of the dishes.

Zhou Zheng is currently able to make portraits of the suspects in the serial murder case, because more repetitions can be exposed in the serial case, which is conducive to the reverse deduction of the suspect's criminal behavior.

A single case has many contingencies, and he does not have enough experience. Many cases have some clues in his mind, but he dare not draw them easily.

The accuracy of such things as criminal psychology portraits should be controlled, and ambiguous judgments should not be expressed as much as possible, so as to ensure that the content spoken is accurate and provide a basis for criminal police investigation.

A wrong judgment may lead to confusion in the direction of investigation, such as the inference of the suspect's gender.

These mistakes will lead to the investigation of the case into a dead end, not only did not play a supporting role, but also a disservice.

"Murderer, male, name two characters, the pinyin abbreviation may be QX, of course, it may also be SX, he likes fishing, and he may even know Wang Qi, he is very likely to have appeared in the video of the traffic police near the North Station. Medically related, most likely a surgeon."

Zhou Zheng said with burning eyes: "Then we will start our investigation from the doctors with two words and the initials are QX or SX in the whole city. In addition to the hobby of fishing, there are definitely not many people who meet these conditions."

(End of this chapter)