Chapter 540: New Case Begins

Conference room of the Criminal Police Brigade of Luojin City.

Xu Ju, Wang Ju and several police officers of Luojin City Bureau, Cui Xiaohu and Li Haochen from the Ministry, Huang Qiangmin and Jiang Yuan and others gathered.

When Jiang Yuan entered the conference room, he could feel the atmosphere different from yesterday.

If the atmosphere yesterday was tense, lively and united, the atmosphere of the conference room today is lively, relaxed and happy.

It's like a group of police dogs meeting yesterday, and a group of golden retrievers meeting today.

If there were no leaders in charge, people like Pang Jidong would have wanted to tickle Jiang Yuan with their eyes.

Of course, Xu Ju and others are still more serious, and have a more arrogant attitude for the time being. After all, Luojin City Bureau is the absolute Party A this time. Those who understand the feeling of being a father understand.

After taking a sip of tea, Director Xu smiled and said, "Jiang Yuan, don't feel burdened. With your ability, it is definitely easy to solve cases. Even if you get stuck, just finish three cases within two years. If you can't finish them, we will discuss it again."

Wang Zhi also smiled and said, "Indeed, in fact, at the beginning, we proposed that you just provide technical support. Director Huang's attitude is more determined and still hopes to have command power, so we also agree. In short, just solve the case..."

They are talking about the case "forced" on Jiang Yuan - 110 Luo Jin Second Sexual Assault Case.

The word Luo Jin means that the case took place in the capital of Baijiang Province; 110 is the time when the first case occurred, on January 10 last year; the second sexual assault refers to the special nature of the case.

The criminal in this case used a more special way of committing the crime. He first subdued the victim by electric shock, then blindfolded the victim with a cloth strip, and took him to a nearby place to sexually assault him. Then, he would take the victim to another unknown place in his car and sexually assault him several times. After the crime was completed, he would drive the victim back to the original place and abandon him.

The places he chose were all relatively remote areas, without cameras and surveillance. The targets he chose were all young middle school girls. After the sexual assaults, the victims could not even identify the crime scene.

In addition to the rigorous method of committing the crime, the time of this person's crime also embarrassed the police. The first two crimes were committed on January 10 and January 19 respectively. According to the way the police named the special case, it is easy for people to feel provocative.

The case was not easy to solve.

Although it is said that in normal cases, the more the criminals do, the more loopholes there should be. But in this case, the criminals did not leave many clues.

The victim was electrocuted and tied up with ropes. Not only was he weak in resistance, but he was also able to provide limited clues. The same was true for physical evidence, which was almost nonexistent.

Under such circumstances, the Luojin City Bureau has begun to try to use criminal profiling, that is, psychology to solve the case.

But there is still no breakthrough.

Director Xu and others are mainly looking forward to this case for Jiang Yuan.

Rape is one of the eight major crimes, and serial rape is even worse. In addition, the victims are all middle school girls, so the destructive power of this case on society is far greater than expected.

Since last year, the Luojin City Bureau has invested a lot of manpower and material resources in this case, and has also specially updated the surveillance systems in many suburban areas. After the fourth case appeared in the middle of the year, the police set up checkpoints frantically, hoping to catch the murderer by luck.

Although the case has not been solved, the trend of the criminal's crazy crime has been cut off. Until today, the number of cases in this case has been fixed at 4.

Despite this, the Luojin Municipal Bureau still regarded this case as a shame. Therefore, with the end of the kidnapping case, the Luojin Municipal Bureau, which had a little spare energy, first thought of the 110 Luojin secondary sexual assault case.

After Jiang Yuan received the news yesterday, he had already read the information of this case. It was only after obtaining his consent that today's meeting was held.

At this time, in front of the people of Luojin, Jiang Yuan gave a positive reply: "As long as the resources can be guaranteed, there is still a chance to solve this case."

Even though they had received a reply long ago, everyone was still happy to hear Jiang Yuan's positive answer.

Director Xu hurriedly said: "There is no upper limit for this case, and it will be paid according to the actual report. Forensic Doctor Jiang can rest assured."

The captain of the detachment was even more down-to-earth. He had also discussed it with Huang Qiangmin, so he said: "The fourth team can be pulled out separately, and all members will join the special case team."

"The expenses of the trace evidence laboratory may be higher, and I have to hurry up first." Jiang Yuan made another request.

Director Xu and others naturally agreed.

Jiang Yuan looked at Huang Qiangmin again and continued, "Then let's build this case first. In addition, the three cases agreed upon..."

"Don't worry, just do the 110 case first." Director Xu suddenly became very easy to talk to.

Jiang Yuan smiled and said, "When I was looking at the case on the intranet yesterday, I also looked at other cases. There was a backlog of murder cases. I saw that the fingerprint evidence was quite special, so I did it and the fingerprint was matched. I will send someone to follow up later."

Jiang Yuan took out a piece of A4 paper that had been folded several times from his pocket and handed it forward.

The captain hurriedly took it and unfolded it. It was directly a fingerprint identification certificate. There was also information about the criminal suspect who matched below, but it was a prisoner who had been released after serving his sentence.

"Does this mean that this person is a suspect?" The captain still had little contact with Jiang Yuan, so he was still a little confused about the specific pattern.

"The bloody handprint is either a suspect or a witness. Bring him back for interrogation and we'll know." Jiang Yuan took the fingerprint directly because he saw a blurred bloody handprint. Image enhancement LV5, two fingerprint identification skills, and a temporary +1 to LV4 fingerprint identification, it took only more than half an hour to match the fingerprint.

Based on Jiang Yuan's experience, this unsolved murder case was solved.

The detachment leader was shocked, and Director Xu was surprised.

Huang Qiangmin smiled but said nothing. Jiang Yuan's first second-class merit was earned during the fingerprint battle. Luojin City itself did not have a fingerprint expert as strong as Jiang Yuan.

"Old Yi, you guys follow up on this case." The detachment leader pointed to the captain of his second brigade.

The captain of the second brigade was a traditional old criminal policeman with a deep hatred. His eyes were sharp and he looked unbelieving. At this moment, he just nodded in agreement.

The captain coughed twice again and said, "That... Captain Jiang, do you have any direction for the investigation of the 110 case?"

He wanted to ask this question just now, but was interrupted by Jiang Yuan with a fingerprint. It would be more polite to speak now.

Jiang Yuan naturally did not need to hide, and said directly: "I saw the clothes of four victims in the list of evidence yesterday. I think we can start from this and use forensic botany to circle the location of the case."

Forensic botany connects people on one side and places on the other.

Using forensic botany, the easiest thing to find is not people, but places.

In this serial rape case, the crime scene has never been found, which is a big problem.

This is not only related to the investigation stage, but also to the subsequent litigation links.

Jiang Yuan saw the expressions of the crowd and knew that they didn't quite understand the situation, so he continued: "My idea is relatively simple. When the perpetrator committed the crime, the victim's clothes should have come into contact with the first and second scenes. And the contact time should not be short. If there are four cases, perhaps a pattern can be found."

"Second, the place where the murderer first committed violence should not be far from the place where the victim was electrocuted. The victim was unable to tell the exact time and place because of the electric shock, blindfolding, and shock. Pollen does not have this problem."

"This... can it be found in this way? It's been more than a year, is the pollen evidence still useful?" The captain felt more and more unbelievable the more he listened.

Jiang Yuan only said: "For pollen, ten years apart is child's play, but it depends on today's experimental operation."

The captain and Director Xu and others nodded when they heard it, but they didn't know why.