After the meeting ended, Xu Zheng first went to the Department of Forensic Medicine of Changming University School of Medicine, and Professor Ji Dongli had a class today.

In Professor Ji's office, after the teachers and students sat down, Xu Zheng directly explained his intentions, "Teacher, my boss, his mother-in-law is suspected of having a tumor, and now she is in the provincial hospital, you can help say hello to Dean Zheng and find an expert to take a look." ”

Ji Dongli's gray brows raised, and he said strangely on his face: "Tumor, if you want to say that you don't need to find Lao Zheng for this disease, he owes you a favor, and it is useless to use it on this, I am friends with Professor Ni from the Oncology Department of the Provincial Hospital."

Just go to him.

I'll call him in a while, and I'll send you his contact information when I get back, and you can let your leader contact him directly at the provincial hospital. ”

Xu Zheng looked grateful, "Then thank you, teacher, we went to the magic capital this time to arrest an A-level wanted criminal, her method of committing the crime is to use genetic drugs to induce and aggravate the victim's cancer, after the news came back, many leaders of our fugitive pursuit office took the time to do a comprehensive physical examination."

Teacher, you and your wife have time to do it once, and now there are some cancers, which may not be able to be detected until the later stage of the physical examination. ”

"Hey! I've heard a little bit about what you're talking about. Ji Dongli fell into deep thought, "In fact, the synthesis of this gene drug is not difficult, and even the external network has a process, and the more difficult thing is the raw materials."

Therefore, if you want to regulate this kind of criminal behavior, you have to start from the source, such as the research institutes of major hospitals and schools..."

Professor Ji talked a lot about this type of crime, the case was very detailed, Xu Zheng listened carefully to the teacher's teachings, and also admired his knowledge reserves, but today he still has a task to do, and after chatting with the teacher for a while, he proposed to leave.

"Teacher, I have to go to the Yuhuatai branch in a while to help them capture a fugitive."

"It's the man who killed his wife's mistress, right?" Ji Dongli returned to the computer, opened an email, and beckoned Xu Zheng to come over and take a look, "This is the autopsy report sent by Xiao Lu from the City Bureau."

How so?

He asked me to come and say that they had dissected the body and found that the deceased's skull, the wound on the back of the head, was in the shape of broken bones, and that the two blows were on the same part. ”

Ji Dongli pointed to two photos of the wound and analyzed: "You see the first photo shows that the murderer should have hit the back of the deceased's head with the grip stick at home, and the front of the grip stick hit the top of the skull.

The wound was in the shape of an upper and lower shape, and the fatal cause was a shattered skull, and the brain was shattered.

The second photograph shows that the wound is the same part, but a little below the first wound, and it is also in the shape of an upper and lower shape, although it is clearly larger and deeper than the bone crushed in the first photo.

Of course, it is also possible that the wound in the second photo was hit by the murderer with the first blow.

You're a forensic expert now, tell me what that means? ”

Xu Zheng stared at the two photos and fell into deep thought, and the expression on his face froze, "Generally speaking, the murderer found that his wife's mistress was running errands in his bed, and in a fit of anger, he took his own holding stick and hit the back of the mistress's head.

This is an angry attack, and the strength must be used with all his strength.

And the second photo can be seen that the murderer's second blow not only hit the same wound, but also the two wounds are close to each other.

Just like when we chop bones, the position of the second knife and the first knife, under the force, there is only a fifty percent chance of cutting in the same position at most.

Considering that the killer was in a fit of rage, I have a feeling that the two wounds are not necessarily the same person's hand. ”

Ji Dongli nodded and added: "You and Xiao Lu have analyzed the same, it's just that we can't do experiments on this kind of bone-like wound, but according to my experience, these two photos, two wounds."

It can be said that this is indeed done by two people.

Because of this level of wound, if the deceased received only one stick, 80% will not be fatal, but 60% may cause a concussion.

If you take two blows, you really can't die anymore.

And if you look at this second photo, although the wound partially overlaps with the first one, it is shallow and deep at the bottom, indicating that the murderer should have hit the deceased while he was lying on his stomach.

And the wound on the top of the first photo, deep at the bottom and shallow at the top, shows that the murderer took advantage of the murderer's standing to hit him. ”

That's why I said that the murderer was two people, because if the first blow knocked the deceased to the ground, then the second time, it is impossible for him to squat on the ground and deliberately shoot again at the position of the first stick. ”

"Teacher, I can't analyze this from the wound, it seems that your old man is experienced." Xu Zheng told the truth that the difference between the two wounds is not very big, and without many years of experience, he can't analyze the strength and angle of the blow.

Ji Dongli shook his head slightly, "How many years have I been a forensic doctor, and when you reach my age, you can see it." However, this is only a photo, the real situation, and you have to go and personally examine the head of the deceased.

We forensic medicine cannot only see with our eyes and analyze with instruments, but also touch with our hands, analyze with our brains, and even analyze the strength from the perspective of physics, and use psychology to analyze the psychological state of the murderer at the time of the crime. ”

Xu Zheng listened and wrote it down carefully, this is experience, forensic medicine must be cautious, "Teacher, then without further ado, let's go to the city bureau to find Forensic Doctor Lu now." ”

Ji Dongli looked at his watch and shook his head, "I have a very important meeting in the afternoon, and I will go to Xiao Lu at four o'clock." Since the forensic doctor has a different opinion, you can take advantage of this time to go to the scene first.

Come, let me simulate what happened to you. ”

Ji Dongli picked up a newspaper and rolled it into a paper stick, first asked Xu Zheng to stand up, and hit him on the back of the head with a stick, and he fell down in response, and then Professor Ji squatted on his side again, aiming at the position of the blow just now.

"That's probably the situation, you go to the scene to see if you can find relevant clues, I think there are at least two murderers in this case, one is the man you are pursuing, and the other should be a man, stronger and more powerful.

He must have taken advantage of the man's escape and the door was not closed, entered the room, and when he arrived at the scene, he found that the deceased was not dead, and the woman was in a coma, so he took the grip stick and hit the deceased on the head who was already lying on the ground. ”

"Teacher, I think the case should be the same as the result of your reasoning, your forensic ability to handle cases is better than our investigators." Xu Zheng looked impressed, and directly patted the horse's ass.

Ji Dongli smiled slightly, "The forensic doctor is also a criminal policeman, and the forensic doctor can have access to the first-hand autopsy report of the deceased, so you can't underestimate the role of our forensic doctor in criminal investigation, you have to pay attention to it." ”

"Well, you're right, teacher, I'll be in the future..."

"You're going to have to skip school in the future, aren't you?" Ji Dongli interrupted Xu Zheng's words, and said with a smile: "Forget it, your work is also very busy, Xiaorui is about to give birth, you have to spend time at home, and when you are busy for a while, you have to make up for the class." ”

Xu Zheng hurriedly promised, "What you taught me is that I will take time to attend classes in the future, hehe... Fortunately, I came to you first, otherwise I would have gone directly to Yuhuatai, and I would definitely not have found any useful clues. ”

When Ji Dongli heard this, he reminded with a serious face: "Your mentality is not right, you can't go to investigate the scene with the idea of two suspects, but you have to infer the real incident according to the situation at the scene."

No preconceived notions. ”

..........

Out of the school, Xu Zheng was still thinking about Professor Ji's criticism and education just now, and he found that after solving so many cases, his mentality was not as enthusiastic as when he first came into contact with criminal investigation.

Is this "three years of pain, seven years of itch"?

However, Professor Ji is right to remind that any case must be investigated with suspicion.

At three o'clock in the afternoon, Xu Zheng, Zhuang Yongshan and Gu Jia rushed to the Yuhuatai Criminal Police Brigade, Lu Shen, as the captain of the Criminal Police Brigade, saw him coming, and stretched out his hand, "We are looking forward to the stars and the moon, but we can bring you back, a new criminal investigation expert." ”

The two have cooperated before and have a good relationship, Xu Zheng shook hands with him and complained: "What kind of criminal investigation expert am I, compared with you old criminal investigators who have been working for more than ten years, I am just starting out." ”

Lu Shen laughed, "Yes, yes, you just came out of the Maochu and made the Longzhong Pair and laid the Three Kingdoms, so you see, should I come to the Thatched House?" ”

"Haha, Brigade Lu laughed, I'm on a business trip, next time you call me, I'll drive over immediately, and I won't let you wait another minute."

The two joked with each other for a while, then walked into the conference room, and Lu Shen asked his subordinates to give Xu Zheng a brief explanation of the case and the process of tracking the suspect in the past three days.

At 3:20 p.m. on December 17, 2035, the 110 command center received a call from a woman saying that her husband had killed someone... When the patrol police of the nearest police station arrived at the scene, they saw that the door was open, and the woman was sitting on the floor of the bedroom with her head buried in her chest, and yellow water was flowing below.

On the other side of the bed, there was a naked man lying on his side on the ground...

The patrolling policeman put on shoe covers and gloves, first tested the man's snort, and found that the person had already died, and then took the woman out of the room and notified the superior unit, the Yuhuatai Criminal Police Brigade.

After Lu Shen received the police information, he immediately rushed to the scene with the backbone, according to the woman's confession, when she was exercising with her lover, suddenly her husband opened the door and walked in, still holding a holding stick in his hand.

This kind of cheating thing was caught, she and her lover panicked directly, seeing her husband's violent, the woman directly chose to kneel on the ground and beg for mercy, and at the same time let her lover go first.

But her husband didn't care about it at all, and directly slapped her unconscious, and when she woke up again, she found that her lover was lying in a pool of blood, no breathing, and no heartbeat.

She was scared and then chose to call the police.

After a brief investigation, Lu Shen and the others quickly listed the woman's husband Mai Jingwei as a suspect, but the time of the crime was around 2:40 p.m., and the woman was in a coma for 40 minutes, and by the time they searched for Mai Jingwei, more than an hour had passed.

For three days in a row, the city investigated hotels, Internet cafes, bars, clubs and other places, but no trace of Mak Jingwei was found.

At the same time, Mak Jingwei's parents, siblings, relatives and friends were investigated, but his hiding place was not found.

The Sky Eye system, various means of public transportation also yielded no results.

It was as if he had evaporated from the world, disappearing without a trace.

"Xiao Xu, in the past three days, my brother has slept less than ten hours." Lu Shen complained directly to Xu Zheng in front of everyone, "This is not close to the end of the year, and the top requires stability, after all, this matter has now been spread on the Internet, and it is quite a big trouble."

The leadership has already asked us to catch the suspect.

Otherwise, my brother's position will not be guaranteed, you have to help us this time and see if there is any way? ”

Xu Zheng shook his head with a wry smile, "Brigade Lu, let's talk about it, now that the suspect has been on the run for three days and missed the golden period, I can only say my best." ”

"Just do your best, I'm surprised, tell me, where can this person hide?" Lu Shen scratched his head, a captain, the head oil can be scraped off a tael.

Xu Zheng didn't laugh at him, but glanced at him sympathetically, and got down to business, "Before I came just now, I went to my teacher, Professor Ji Qianli, and he and Forensic Doctor Lu of the Municipal Bureau found a suspicious point, did Forensic Doctor Lu tell you?" ”

"The forensic doctor of our substation came to the conclusion that the grip stick was a tool for the crime, and the wound was a broken skull, which shattered the brain." Lu Shen asked his subordinates to find a forensic identification certificate, "According to the regulations, after the forensic doctor of our sub-bureau issues the test report, he will submit it to the superior unit, that is, the forensic doctor of the Municipal Bureau, Lu for re-examination."

I still haven't received the test report from Dr. Lou.

What, did he find anything? ”

Xu Zheng nodded, briefly explained the judgment of Professor Ji and Forensic Doctor Lu to everyone, and finally he also expressed his opinion, "I believe in the opinions of the two professionals, Professor Ji and Forensic Doctor Lu.

Then there may be two suspects.

Mak Jingwei may or may not be the murderer, or his stick is not lethal, and the other murderer made up the knife.

Now you can't find any trace of Mai Jingwei, and I can't either, after all, no matter how high my IQ and ability are, I can't compare to the big guys, right? ”

At this time, a colleague from the Yuhuatai Criminal Police Brigade said: "Director Xu, just say how to investigate, we will all listen to you." ”

"Yes, Director Xu, you are an expert in criminal investigation and tracking, our captain is convinced, and we are willing to listen to your command."

“......”

The people below begged Xu Zheng with nonsense, even Lu Shen, the captain, was looking forward to it, Xu Zheng was also speechless, it seems that they should have been forced by their superiors.

There is no way, one level is pressed one level, and the case-handling personnel who are pressed are worried and scared all day long, after all, this is going to be the end of the year, the suspect can't be caught, there may be no bonus this year, who doesn't want to have a good year.

If there is no bonus, can the New Year be fragrant?