Luojin City Criminal Police Detachment Conference Room.
Bureau Xu, Wang Branch and many policemen from the Luojin Municipal Bureau, as well as Cui Xiaohu and Li Haochen who came from the ministry, as well as Huang Qiangmin, Jiang Yuan and others gathered together.
Entering the conference room, Jiang Yuan could feel a different atmosphere from yesterday.
If yesterday's atmosphere was tense, lively and united, today's conference room atmosphere is lively, relaxed and happy.
It's like yesterday it was a group of police dogs having a meeting, and today it's a group of golden retrievers having a meeting.
If there weren't leaders in charge, like Pang Jidong and others, they would all want to tickle Jiang Yuan with their little eyes.
Of course, Bureau Xu and others are still more serious and have a more arrogant attitude for the time being. After all, Luojin Municipal Bureau is definitely Party A this time, and everyone knows what it feels like to be a father.
Taking a relaxed sip of tea, Director Xu smiled and said: "Jiang Yuan, don't be burdened. With your ability, it will definitely be easy to handle cases. Even if you get stuck, you can just finish three cases within two years. Really do it."
It’s not over yet, let’s discuss it again.”
Wang Zhi also laughed and said: "Indeed, in fact, at the beginning, we just asked you to provide technical support. Director Huang's attitude was more firm, and he still hoped to have command power, so we agreed. In short, the detection
Just the case..."
What they were talking about was the case that was "forced" to Jiang Yuan - the 110 Luo Jin Second Sexual Assault Case.
The word "Luo Jin" indicates that the crime occurred in the capital of Baijiang Province; "110" refers to 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 relatively special way of committing the crime. He first used electric shock to subdue the victim, then covered the victim's eyes with a cloth strip, and took him to a nearby place to sexually assault him. Then,
He would kidnap the victim into a car, take him to another unknown location, and sexually assault him multiple times. After the crime was completed, he would drive the victim back to the original location and abandon him.
The locations he chose were relatively remote areas without cameras or surveillance. The targets he chose to commit crimes were all young middle school girls. After the sexual assault, the victim could not even identify the crime scene.
In addition to the rigorous method of committing the crime, the time when this person committed the 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 case, it is easy for people to feel provocative.
meaning.
Unfortunately, the case was not easy to solve.
Although it is said that in a normal case, the more the criminal does, the more flaws there will be. But in this case, the criminal left really few clues.
The victim was electrocuted and controlled by a rope. Not only was his ability to resist weak, but the clues he could provide were also very limited. The same was true for the physical evidence. There was basically no effective physical evidence.
Under this situation, the Luojin City Bureau has begun to try to use criminal profiling, that is, psychological things, to solve the case.
There is still no breakthrough.
Director Xu and others' main expectation for Jiang Yuan is this case.
Rape is one of the eight serious crimes, and the nature of serial rape is even worse. In addition, the victims are all middle school girls, and the destructive power of this case on society is far greater than imagined.
Since last year, the Luojin Municipal Bureau has invested a lot of manpower and material resources in this case, and has also specially updated the surveillance systems in many suburbs. After the fourth case occurred in the middle of the year, the police went crazy setting up card blocks, hoping to catch someone by luck.
to the murderer.
Although the case has not been solved, the criminal's tendency to commit crimes has been cut off. To this day, the number of occurrences of this case has been fixed at 4.
Despite this, the Luojin City Bureau still regarded this case as a shame. Therefore, with the kidnapping case over, the first thing that everyone in the Luojin City Bureau thought of was the 110 Luojin Second Sexual Invasion Case.
After Jiang Yuan received the news yesterday, he had already read the information on the case, and only after getting his consent did today's meeting take place.
At this time, in front of the Luo Jin people, Jiang Yuan gave a positive reply: "As long as 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 when they heard Jiang Yuan's positive answer.
Director Xu hurriedly said: "There is no upper limit in this case and real reimbursement will be made. Forensic Doctor Jiang can rest assured."
The detachment leader was a real person and had a good deal with Huang Qiangmin, so he said: "The fourth brigade can be singled out and all members can join the task force."
"The cost of the trace evidence laboratory may be higher, so I have to be tight on time." Jiang Yuan made another request.
Director Xu and others naturally agreed.
Jiang Yuan looked at Huang Qiangmin again, and continued: "Then this case will be established first. In addition, the three agreed cases..."
"There's no rush, just do the 110 case first." Director Xu suddenly became very talkative.
Jiang Yuan smiled and said: "When I was looking at cases on the intranet yesterday, I took a look at other cases. There was a murder case in the backlog. I thought the fingerprint evidence was quite special, so I did it casually, and the fingerprints were also matched.
, just send someone back to follow up."
Jiang Yuan took out a piece of A4 paper that had been folded several times from his pocket and handed it forward.
The detachment leader hurriedly picked it up and opened it to see that it was a fingerprint identification certificate. Attached below was the information of the suspect, who was a released prisoner.
"You mean this person is a suspect?" The detachment leader still had little contact with Jiang Yuan, so he still couldn't figure out the specific pattern.
"The bloody handprint is either a suspect or a witness. You will know after you bring it back for interrogation." Jiang Yuan took a fancy to the vague bloody handprint, so he directly fingerprinted it. The image was enhanced to LV5, and then two fingerprints were used for identification.
Skill, and then give LV4's fingerprint identification a temporary +1, and it only took more than half an hour to match the fingerprint.
Based on Jiang Yuan's experience, this backlog of murder cases can be considered solved.
The detachment leader was greatly shocked, and Director Xu was inexplicably surprised.
Huang Qiangmin smiled and said nothing. Jiang Yuan's first second-class skill was achieved during the fingerprint battle. Luojin City itself did not have such a strong fingerprint master as Jiang Yuan.
"Lao Yi, follow up on this case." The detachment leader named the captain of his second brigade.
The captain of the second brigade is a traditional hard-working old detective with sharp eyes, looking like he doesn't believe anyone. At this moment, he just nodded in agreement.
The detachment leader coughed again and said: "Well... Captain Jiang, regarding the 110 case, do you have any investigation direction?"
He was about to ask this question just now, but was interrupted by Jiang Yuan with a fingerprint. Now he spoke more politely.
Jiang Yuan naturally did not need to cover up, and said directly: "I saw the clothes of four victims in the exhibit list yesterday. I think we can start from this and use forensic botany to delineate the location of the case."
In forensic botany, what is connected is people on the one hand, and places on the other.
With forensic botany, the easiest thing to find is not the person, but the place.
In this serial rape case, the crime scene has never been found, which is a big problem.
This is not only relevant to the investigation stage, but also to subsequent litigation.
Looking at everyone's expressions, Jiang Yuan 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 scene and the second scene.
And the contact time should not be short. If there are four cases, we may be able to find a pattern."
"Second, the location where the murderer first committed violence should not be far from the location where the victim was electrocuted. The victim was unable to tell the exact time and location because he was electrocuted, blindfolded, and frightened. Pollen
No problem."
"Can...can we find it this way? It's been more than a year, is the pollen evidence still useful?" The detachment leader only found it more and more unbelievable the more he listened.
Jiang Yuan only said: "For pollen, ten years apart is nothing but pediatrics. However, the details will depend on today's experimental operation."
The detachment leader, Director Xu and others just nodded their heads. I don't know why.
