I originally planned to be at home on the first day of junior high school, invite relatives and friends on the second day of junior high school, accompany my father-in-law and mother-in-law and Li Xiaolei back to BJ on the evening of the second year of junior high school, stay in BJ for three days and fly directly to Xinyang, and go to work on the seventh day of junior high school. Pen, fun, pavilion www. biquge。 info

Plans are always better than changes!

After the year, it is very likely that he will have to go to Xiguang to assist in handling the case, and if there is no diamond, he must seize the time to recharge, and he has the right to hold on to the matter.

After inviting his grandparents, uncles, uncles, uncles, and other relatives in his hometown in the second year of junior high school, Han Bo sent his father-in-law, mother-in-law, wife and Xiao Suxu to the flight from Nangang to BJ, and returned to his home in the Binjiang community alone, studying behind closed doors like the graduate school entrance examination that year.

DNA technology is a new forensic technology, which includes information technology, medicine, computer and other disciplines, and the knowledge is updated and fast. If you want to keep up with the pace of development of the times, you must learn from the network, from books, from peers, and from experts. With sufficient knowledge reserves, for all kinds of difficult technical problems, you can use your brains, carry out key research, and forge DNA technology, which is a killer tool to solve cases.

Look at domestic cases and foreign literature, and send an email to the experts of the "Second Institute" for advice if you don't understand.

I was tired of reading the technical cases and literature, and I studied the case files that I copied in the provincial department when I came back a year ago.

Now the criminal investigation department has a heavy task and great pressure, and everything will be fine if the case can be solved, so it has no energy to explore the cause of the case. It is necessary to study and analyze the social phenomena and deep-seated problems that arise from various types of criminal cases, explore the laws of crime, and study what types of cases can be prevented and how to solve them after they occur.

Compared to the dinner that didn't play and didn't play, compared to eating and drinking, I was more comfortable doing what I liked, and before I knew it, three days had passed, except for the occasional phone call or two, almost no one bothered.

Perhaps the perspective is different, and the views on some cases are also different.

Among the murder cases that occurred and were solved in the province last year, Han Bo felt that there were some suspicious points in several cases, and only one of these cases was being handled, and the other few cases had been closed.

Turning over the old case is to deny other people's judgments, and after several weighings, Han Bo still dialed Du Zhigang's team on the phone.

"Team Du, Happy New Year. ”

"Han Bo, didn't you celebrate the New Year on the first day of junior high school, what's the matter, did you come back early?"

The timing of this call was carefully chosen, and today happened to be the captain on duty, which would not affect the leader's New Year's holiday, and the leader could easily access the case file in the unit.

Han Bo didn't want to sell Guanzi, let alone delay the leadership's time, so he said bluntly: "Team Du, I have been studying last year's homicide case file at home for the past few days, and I found that the 12.18 case in Dongping City may need to be investigated again. ”

The last homicide case that occurred in the province last year, Du Zhigang was a little impressed, and said: "I know this case, the task force is characterized as an ordinary homeless murder case, Lao Huang has been to Dongping because of this case, it seems that it has been solved, and the evidence is conclusive." ”

"Judging from the case file, the evidence is conclusive. ”

Han Bo took a deep breath, stared at the monitor and said, "The preliminary judgment of the murder weapon is a fruit knife, and it has been stabbed more than a dozen times in a row, and the method is cruel. But the corpse was disposed of in a simple way, and the murderer didn't even think to erase his traces. The medical examiner found scratched flesh between the victim's right fingernails, and a strip of rag was clutched in his left hand. ”

Unjust, false and wrongful cases must not be made, and the Du team did not think that Han Bo was looking for trouble, and subconsciously asked: "Is there a problem?"

"There is nothing wrong with this case itself, the quality of the case should be relatively high, and the characterization of the task force has some truth, but it is not without doubts. ”

Han Bo put down the mouse, flipped through the notes he had made, and analyzed: "First of all, why did the murderer abandon the body in the fruit grove, if it was to cover up the crime, or delay the discovery time, wouldn't it be better to hide it in a corner near the first scene? Second, the victim was a homeless man, so how could a sloppy man have a brand new tie on his body? Third, if the murderer could think of discarding the corpse, why didn't he think of cleaning up the blood and skin tissue between the victim's fingernails?"

"Maybe it's the homeless who kill people because of trivial things, they are relatively simple-minded, they think of some things, and it's normal to think of some things. ”

"The murderer is a homeless man, a homeless man with mental problems, and even confesses to the facts of the crime. However, on March 12 last year, on the grass outside the west gate of the fertilizer factory in Dongping City, there was also a case of homeless people being killed. The deceased's name was Chen Daquan, and he was stabbed to death with a dagger.

The Pingguang Branch of the Dongping City Public Security Bureau found another person's blood stains and a button on the deceased's body, and four days later, the suspect Ding Xinjun was arrested, he had a conflict with the victim, the blood DNA matched, and the button was also on one of his clothes, and the investigators found the murder weapon in his home, and the evidence was conclusive. ”

These cases are very strange, and there is no bottom about whether Han Bo made a mistake or not.

But since he opened this mouth, since he has already said this, he must trust his intuition, he flipped through his notebook, and continued: "I found from the case file that Ding Xinjun has always shouted injustice after he was arrested, and even asked the lawyer who provided him with judicial assistance to defend his innocence, but because the chain of evidence formed by direct evidence and peripheral evidence could not be refuted, he was sentenced to death by the court. ”

"There's nothing wrong with that!" Du Zhigang became more and more confused the more he thought about it.

"If it's just this case, there's really nothing wrong with that. However, I found that in the past year, there have been four murders of homeless people in Dongping City, which occurred on January 5, March 12, May 21 and December 18. ”

Isn't the young man a little nervous, Du Zhigang reminded: "Han Bo, homeless people and drug addicts belong to the same group of people with a high incidence of major criminal cases, and it is not surprising that there are three or four such cases in a prefecture-level city a year. ”

"Team Du, this is just the urban area. ”

Han Bozhen hoped that he was wrong, and said solemnly: "I found out in the investigation that two counties in Dongping City also had a homeless murder case last year. One occurred at the end of July and one in mid-October, an average of two months for the whole city. ”

"There is such a thing!" There are not so many coincidences in the world, Du Zhigang couldn't help but feel excited.

"So I think it's strange, it's not this kind of case that's strange, it's the time when the case happened and the way the evidence of the case locked on the suspect, and ......" Han Bo had other questions in his heart, but he hadn't thought about it so clearly.

Is it really a serial murder case, not only serial killing, but also planting blame!

Du Zhigang chuckled in his heart and asked, "Are they all killed with daggers?"

"No, there's fruit knives, there's daggers, there's machetes, there's bricks, and it looks very random. None of the tools of the crime were thrown into the river, and none of the tools were confessed by the murderer, and they were all easily discovered by the investigators searching the scene or searching the murderer's residence. ”

Han Bo clicked the mouse, looked at the physical evidence identification reports on the computer monitor, and said: "There is also DNA, there are traces of the suspect's blood on the victim's body and the murder weapon, or the items stained with the victim's blood stained in the suspect's residence, they can all verify each other anyway." ”

Six or seven times a year, the modus operandi is different, the murder weapon used is different, but the dead are all homeless, the way the case evidence locks the suspect is the same, and there is a certain law in the time of the crime!

As an old criminal policeman, how could Du Zhigang not know what this meant.

He gasped and asked eagerly, "The suspects have all been sentenced to death?"

"Three cases have been sentenced, and the other three are going through the procedure, and one of the three sentences is a death sentence and is waiting for the Supreme People's Court to review it. A person dies a reprieve, and a person dies indefinitely. The one who was indefinite was named Liu Bo, who voluntarily admitted to the killing, but argued that he killed the other party by mistake when he was forced to do so, and the judge accepted his confession. ”

Han Bo rubbed his swollen temples and continued, "I contacted the detention center in the afternoon, and according to the correctional police, he was adamant at first refusing to admit it. It may be that someone told him through the wind that it was a dead end for him not to admit it, so it was better to admit it, find a plausible reason to kill, shirk part of the responsibility, and maybe he could save his life. ”

"What about the other suspects?"

"Due to the rush of time, and now that it is the Spring Festival, in addition to the correctional police just mentioned, I only contacted a police officer who handled another case in the afternoon. He was at the scene when he was arrested, but he didn't feel any joy at all, as if he had become an inexplicable accomplice. He felt that the suspect did not look like the murderer at all, and when he was caught, he was at a loss and did not know what to do, until he was brought to trial, and he firmly believed that the police had made a mistake and that it would not be long before he was released. ”

"It's okay to have a single case, but it's a problem to link it together. ”

"It can't be a problem, it can only be said that there are doubts. ”

Du Zhigang habitually knocked on the table and muttered: "If there is some kind of connection between these six cases, it should not be difficult to investigate, but with the existing evidence, not evidence, just suspicions, it is difficult to determine that the six suspects are wronged, and they do not have the conditions for collusion." ”

It's already terrible to make a mistake in an unjust, false and wrongful case, and what kind of concept is it to come up with six cases at once!

Han Bo knew that the leader was very embarrassed, and he felt that he should stand up and remind him, but he also spontaneously felt an inexplicable sense of guilt, as if he was denying the judgment of his peers in Dongping City.

But thinking of his mission, he couldn't help blurting out: "Team Du, human life is at stake." ”

"yes, you can't look ahead and look backwards. I want to find a way, keep people under the gun first, and wait for you to come back to set up a special work team, go to Dongping in the name of research, find out, and check whether these cases are related. ”

The more you commit this kind of crime, the more flaws you leave behind.

If these six cases are really related, and if there is really a cunning serial killer, then as long as the direction is identified and the social relations of the six victims are thoroughly investigated, no matter how cunning the real murderer is, he will not be able to deceive the public security organs, after all, no one can kill people for no reason.

Even if the murderer is a perverted murderer, has no grudges with the victim, and just wants to kill people, he will also appear next to the six victims, as long as the basic work is done carefully enough, there is always a way to cross-compare him.

The "work" introduced by the old leader is not very urgent, and the bastard who confessed to killing other people as soon as he went to the execution ground will not escape death, but it is just a matter of one day sooner or later.

It's been more than two years since he lived, and I don't care if I let him live a few more days.

Several cases in Dongping City are different, and we must hurry up to find out, otherwise once the execution is carried out, the suspects who may be wronged will never be able to live.

Human life is at stake, Han Bo didn't dare to delay for a moment, and said: "Team Du, I'll go to the East China Sea now, tonight's ticket shouldn't be difficult to buy, and there is no need to wait for the seventh day of the new year to work." ”

"Okay, book a ticket and call me, and I'll arrange for someone to pick you up at the airport. ”

"Yes. ”

……

At the same time, the staff on duty at the Nangang-Municipal Party Committee and Municipal Government's Letter-Visit Office, which is more than 10 kilometers away from the Binjiang community, are receiving three very strange petitioners.

Jiangcheng people came to Nangang to petition, not only the relatives of the parties, but even a lawyer.

What's even funnier is that they didn't even understand the situation when they came to complain, and swore that the head of the Han Bo detachment of the Municipal Public Security Bureau had a problem with his life style, fooled around with a married woman, and even broke the law knowing the law, oppressing people with power, and retaliating against the husband of the married woman.

There are more than a dozen heads of the main and deputy detachments of the Municipal Public Security Bureau, and they may not know each other if they are the deputy director of the letter-visit-office, but Han Bo is too famous. Secretary Chen of the Municipal Legal Committee, a serious cadre, a former star of the whole municipal legal system, has cracked several major cases, and no city leader knows him.

When you come, you have to follow the procedure.

After accepting the reaction materials provided by them, inquiring about the specific situation, and carefully completing the records, Deputy Director Wang glanced at his subordinates and asked quietly: "Comrade Zhang Guizhen, when did you say that Han Bo and your daughter-in-law Wu Na had an improper relationship between men and women?"

"For many years, everyone in Silk River knows it. ”

"How many years are many years?"

Since the petition is coming, the situation must be convincing.

Zhang Guizhen is not a rural woman who has never seen the world, and she was also a cadre of an enterprise before she retired, and said hatefully: "They had a leg before Wu Na went to school in Jiangcheng, and my son was blind, and he married this water-based Yanghua woman in a daze, just because she often went back to Sigang to fool around with the surname Han, and the two of them divorced because of their incompatibility." ”

"When did Wu Na and your son get married?"

……

Zhang Jiaozhen's answer was like a stream, and the nonsense came as soon as he opened his mouth.

It is said that there are shrews in the countryside, and it seems that there are unreasonable women in the big cities.

Deputy Director Wang was completely convinced, and after asking all the questions, his face suddenly changed: "Comrade Zhang Guizhen, you have to be responsible for what you said, you can't catch the wind and shadows, let alone slander, otherwise you will have to bear legal responsibility!"

"What do you mean, you officials protect each other?"

"Still messing around!"

Deputy Director Wang slapped the table with a loud voice: "You react to Comrade Han Bo's question, have you met Han Bo? Do you know how old he is this year, know his resume, and know which unit he works in?"

I whispered slowly just now, and I actually turned my face when I said it.

Zhang Guizhen was taken aback, Yan Tianbao was even more frightened and didn't dare to look up, Lawyer Qian found that the signs were wrong, and asked cautiously: "Director Wang, do you know Han Bo?"

"You don't know, I do!"

How could Deputy Director Wang give them a good look and said coldly: "If you talk about it and pour dirty water on an innocent cadre, I can tell you clearly that the time is completely wrong! Wu Na often goes back to Sigang to fool around with Han Bo? Can she see Han Bo when she returns to Sigang?"

At the time you were talking about, people were studying in BJ; in the second time period, they were being transferred by the Ministry of Public Security to the south to handle cases; in the third time period, they were even more of a joke, they had already been transferred to work in the southwest, he was a state cadre, a people's policeman, not a god, and he didn't know how to do tricks, so how could he fool around with Comrade Wu Na?"

………………

PS: Brothers and sisters, I'm sorry, I was going to have a few more chapters today, but Xiao Er broke his head and stayed in the hospital for a day