The workload of Wang Song and Song Mingguang is relatively large, but with the human support from Tianzhou City Criminal Investigation Detachment, it should not be particularly difficult to carry out the work.
After leaving the conference room, Lu Chuan followed Zhao Zhigao to the basement of the Criminal Investigation Detachment.
Although the floor layout of the Tianzhou City Criminal Investigation Detachment is different from that in Haizhou City, the forensic autopsy rooms are all underground.
Sun Jian, the forensic doctor of the Tianzhou City Criminal Investigation Detachment, is also an acquaintance of Lu Chuan. They met two years ago.
"Lijun, I'm going to trouble you again this time."
Sun Jian just attended the case analysis meeting, but he did not speak at the meeting.
"Brother, you're welcome, let's go see the body first."
Time is tight, and Lu Chuan's workload is actually very heavy. The body needs to be dissected twice. In addition, because The body had been frozen, so it would take some time to thaw.
“Let’s go, corpse means freezer.”
Soon, Lu Chuan saw the corpse in the freezer.
Sun Jian made an introduction on the side: "Judging from the autopsy, there are not many useful clues and information."
Generally speaking, the autopsy is mainly to determine the time and cause of death of the deceased.
However, in this current case, the cause and time of death of the deceased are relatively certain. In addition, because the identity of the deceased is certain, there is no need to confirm the identity of the deceased through physical examination.
"Are there any signs of violation?"
Lu Chuan carefully observed the surface of the corpse.
"This has not been found. Of course, it is possible that it has not been detected."
Sun Jian stood next to Lu Chuan: "When the body was discovered, some parts had been deboned because it had been cooked thoroughly."< br>
Lu Chuan nodded. It can be seen that even in the frozen state, some muscles have been separated from the bones, and even the skin has melted.
"Of course, the autopsy is not without any gains. Regarding the suspect's misunderstanding, the other party should not be very good at using knives and does not have a special understanding of the human body structure."
Sun Jian pointed Wounds on the neck of the deceased.
"These two stab wounds have traces of multiple cuts. It should be caused by the murderer not knowing the location of the carotid artery."
"Here..."
"A knife wound here The injury should have been caused by the opponent not finding the correct location when he performed the knife, so he did not cut off the carotid artery at the beginning, so he added another knife. "Has any trace evidence been collected from the surface of the body?"
After observing for a while, Lu Chuan asked.
"That's not the case."
Lu Chuan pondered for a moment: "In this way, the body will melt first. I will go to the crime scene first. After the processing over there, the body should be almost melted. I will come back then. Collect trace evidence from the body. "
Of course Sun Jian will not object. Now that the crime team has accepted these cases, they can only make some suggestions on how to solve the case and what needs to be done. Listen to the members of the Crime Squad.
And no one knows Lu Chuan’s strength better than Sun Jian.
Sun Jian still remembers the skeleton case that occurred in Tianzhou City two years ago. He also conducted an appraisal and analysis on the skeleton at that time, but nothing was found in the analysis.
To be honest, when Sun Jian knew that Lu Chuan was coming, he was half relieved.
The forensic doctor did not waste too much time. It took about seven or eight hours for the body to melt.
Lu Chuan and Zhao Zhigao went straight to Xijiagou Village in Beiwang Town. The house where the crime occurred has been surrounded.
Starting from the road in front of the door, a cordon has been set up.
"This is where the tire marks were found."
Zhao Zhigao pointed to a small area that was fenced off.
Close to the roadside is the part where the cement board road and the dirt road connect.
Now that the traces are still there, Lu Chuan squats down and studies them carefully.
“Have we investigated this?”
Zhao Zhigao nodded: "I sent people to look for tires with similar patterns in the tire market, but they haven't been found so far."
Lu Chuan nodded: "Of course I can't find them. This kind of tire is A kind of special truck tire produced 10 years ago. ”
“It has been discontinued long ago, and even this kind of special truck tire was only used for that kind of truck and was not circulated in the market.”< br>
Lu Chuan has the skill of tire mark identification and analysis. He can tell what type and age of the tire at a glance.
And based on the width of the tire tread and the depth of the soil, it can generally be judged whether there is a load.
"Oh? Army Corps, do you know what kind of car it is?"
"Yes, it's an insulated van, Changning brand. There shouldn't be many of this kind of vehicle in existence."
Lu Chuan quickly told the purpose and brand of the van: "Well, Director Zhao, can you please notify the Tianzhou City Traffic Police Detachment and ask them to check the Changning model produced 10 years ago? How many brand insulated box trucks are there in Tianzhou City? We need to investigate every one of them."
"Okay, okay, I'll do it right away!"
Zhao Zhigang. Unexpectedly, Lu Chuan had just arrived at the scene and before entering the yard, he would find such an important clue based on such a tire mark.
By the way, if this tire mark was really left by the murderer's car, wouldn't that immediately fix the scope of the suspects?
In fact, Lu Chuan had already seen this tire mark in the file, and already knew what model the tire belonged to.
It’s just that there was no way to clearly see clearly how deep the tire marks were in the photos, which meant that it was impossible to judge whether the van was loaded based on the situation at the scene.
So at the case analysis meeting just now, he did not tell this information. Instead, he asked Zhao Zhigao to let the traffic police detachment investigate after the on-site investigation.
In fact, although the entire crime scene had been cleaned up by the suspect, Lu Chuan had actually discovered some clues when he looked at the photos.
Now that we have come to the scene, we can confirm these speculations.
First of all, Lu Chuan basically no longer pays attention to footprints or fingerprints.
Nowadays, the footprints left at the crime scene are all those of the investigators. They are miscellaneous and densely packed with everyone. Therefore, even if the criminal suspect was careless at the time and left one or two footprints, it is estimated that they will still be there now. Can't find it.
Of course Lu Chuan believed in the ability of the Tianzhou City Criminal Investigation Detachment to avoid such omissions.
After conducting a rough analysis of the tire marks, Lu Chuan was not in a hurry to enter the room.
Instead, start observing in the yard.
The Tianzhou City Administrative Detachment conducted a relatively detailed investigation of the crime scene, and the photos taken of the scene were very comprehensive.
When Lu Chuan was reading the dossier, he actually already had a rough understanding of the scene. (End of this chapter)