This on-site observation work is the longest time Lu Chuan has done since he started working.
Generally speaking, the on-site investigation of indoor crime scenes is relatively easy to do because the space is relatively small and relatively fixed.
The procedures and routines of on-site investigation have been tested by various experiences, so it is relatively easier for everyone to do.
For example, collect some hair on the sofa, collect some fingerprints on the table, collect some saliva on the rice bowl, collect some footprints on the ground, and collect clues from the bed, bathroom, kitchen and other corners.
After everyone is familiar with the division of labor, the work will be relatively faster.
However, this time the on-site investigation took a long time, and it has been more than ten hours since Lu Chuan and his team entered the scene.
It took about 4 hours for the investigation in the living room just to investigate. Lu Chuan and two on-site investigation detectives did not miss any details since the entrance door.
Judging from the various situations at the crime scene, the suspect's methods are undoubtedly very cruel.
Generally speaking, the other party uses such an extreme method to kill people, either there is a deep hatred between the two, or the suspect is not a new agent.
Judging from the current situation, although it is impossible to determine whether there is any close relationship between the suspect and the deceased, or there is a grudge, judging from the methods of the suspect, he is still relatively skilled. Lu Chuan's first feeling was that it was not the first time the suspect killed someone.
It is not the first time that someone is killed or killed. Without hatred, the possibility of committing money and killing is relatively greater.
In addition, some of the situations sorted out at the crime scene are actually likely to be a semi-finished product in Lu Chuan's opinion.
The suspect laid a lot of plastic at the crime scene. From this point of view, the suspect's plan to dismember the victim after killing him was clear, and he made sufficient preparations in advance.
The reason for such preparation is that the other party is planning to kill someone. In addition, the purpose of the suspect's body being divided and chopped down should be to fake the illusion of disappearance and leave no traces, but this time there seems to be some mistakes.
However, the specific situation depends on the subsequent investigation results. After Lu Chuan and his team collected the relevant information, they will go back to conduct identification and analysis.
No relevant case analysis meeting was held that night, and the forensic doctors were also determining relevant clues.
In fact, the forensic doctor did not do much work. The broken finger collected from the third floor and the head found at the crime scene were basically no specific part of the victims being discovered again.
What the forensic doctor can do is to collect DNA information and then compare it with the information of the renter to strive to determine the identity of the victim.
In fact, from the on-site investigation, the possibility of the victim renting a house is infinitely close to 100% of the time the renter's ID card, mobile phone and other personal items were found at the crime scene.
However, the final confirmation is not possible from the evidence level.
This is a must.
No one can guarantee whether the suspect used Li Daitaozhuan's methods to kill other people, but changed the identity of the renter.
Another possibility is how many people died at the crime scene, which is currently unsure. The incident began the morning before and the second day, and there was basically a preliminary investigation result in all aspects at around 9:00 am.
Lu Chuan led two on-site investigation personnel from the criminal police brigade. In the evening, I began to appraise and analyze some government affairs I brought back, and by the morning of the second day, I also had some insights.
Lu Chuan, the criminal police brigade of the High-tech Zone, presided over the first case analysis meeting.
The inspection of Lu Chuan on the High-tech Zone Branch is still continuing.
Because the investigation was about to be completed yesterday afternoon, but because of the sudden outbreak of this case, many people didn't agree to the conversation, especially the Criminal Police Brigade.
Such a big case occurred. Many middle-level officials from the branch office followed Lu Chuan to the scene yesterday when the incident occurred. Although they were not responsible for the specific criminal investigation work, logistics support information coordination, horizontal communication, etc. all require everyone's joint efforts.
In fact, in the investigation and handling of various criminal cases, it is not that only the criminal police brigade or the professional criminal investigation personnel are the only participants.
Indeed, the criminal police who are engaged in criminal investigation are definitely rushing to the forefront of the visits, on-site investigations, some trends of criminal suspects, including squatting, etc., which are all done by the criminal police. However, some logistics support work and some horizontal coordination work and some information support work, which is necessary. The organization department of the logistics professional office and even the communications department coordinated.
Anyway, it's OK. From the perspective of the subdivision of each major, there was no idle major that had such a big case, and everyone was very busy, but it was relatively better than the other side of the criminal police.
"The DNA identification and analysis of the forensic doctor's deceased was made overnight last night. The appraisal report just came out, but the appraisal information of the renter's immediate relatives can not be released this afternoon."
Chen Jiang will report first.
No mistakes, one song, one content, one in 6, one book, one bar, one reading!
"Director Lu, although there is no conclusive evidence yet that the deceased is a renter, judging from the current situation on the scene, it should be almost the same. We temporarily assume that the victim is a renter who rents a house."
Lu Chuan nodded.
It is necessary to determine the identity of the deceased, and the DNA identification analysis is for 100% determination, not to use some current investigation clues. Judging from the information, the other party's identity cannot be determined.
Seeing Lu Chuan nodding, Chen Jiang continued.
"Okay, then I'll talk about some basic situation and information about the victim at present. Please see the projection."
"Sun Yajuan, female, 27 years old, 1.67 meters tall.
A native of Tianzhou City, he came to Haizhou City a year ago and worked at the Heaven Entertainment Club. ”
After the incident yesterday, Sun Yajuan's relevant identity information was determined, and Chen Jiang has arranged someone to investigate Sun Yajuan's interpersonal relationships.
The residents living in the same building in the water factory's resident yard did not have a deep impression of Sun Yajuan. Some people met her when she went to and from get off work, but only knew that she was going out at night and came back in the morning.
Chen Jiang first investigated some information about Sun Yajuan through household registration information, and there was nothing special about it. The reason why I found the other party’s Jinjiang Entertainment Club was to find some clues through some call records on the other party’s mobile phone. (This chapter ends)