The forensic doctor has been busy for a day, but there are not many clues.
Wang Changjiang, who was sitting on the inside of the chair, moved his body and said: "The cause and time of death of the four victims are basically consistent with the judgments of the current investigation. We have already confirmed two of them. An autopsy has been conducted on the corpse, and no other special circumstances have been found so far."
Qin Yong nodded. The biggest role of forensic medicine is that the frontline criminal police and investigators cannot judge the cause of death and the time of death. At that time, an autopsy was performed to further determine the cause and time of death.
Or identify the deceased through his or her DNA information.
Of course, this part of the work overlaps with the current survey work. Whoever comes in first will do it first.
In most criminal investigation detachments or criminal police brigades, forensic investigation and forensic medicine are complementary police types.
In some places, forensic doctors are stronger and have a higher say. In some places, criminal police officers are stronger and have a higher say.
In the Haizhou City Criminal Investigation Detachment, the original forensic and forensic investigators actually have almost the same say. Wang Changjiang and Liu Guodong are on par with each other in terms of strength, and in their respective fields, the province's rankings are basically at the same level. relatively equal position.
But since Lu Chuan joined the current exploration office more than a year ago, the strength of the current exploration office has experienced an explosive growth process.
Coupled with the 100 million donated by Qiangsheng Group, the strength of the Haizhou Criminal Investigation Detachment’s on-site investigation office is one of the best in the province, both in terms of hardware and software.
Especially in terms of hardware, Qin Yong also dares to make gestures across the country.
After all, not everyone has 100 million.
It’s great to have money.
"Others, please express your opinions."
"Let me talk about monitoring first."
Sun Jun took the PPT reading pen on the conference table and turned on the projection equipment.
"Let me talk about the surveillance video of the building in the rental house first. We checked the video surveillance equipment and it is indeed not in working condition."
"But..."
Sun Jun switched the PPT, which was a partial photo of the surveillance computer: "The surveillance equipment in the building was not damaged, but someone intentionally unplugged the monitoring line."
Unplugged it on purpose?
The police officers who participated in the case analysis meeting were alerted when they heard this. This was a major clue, because during the investigation, some tenants reported that the monitoring equipment was damaged and the landlord failed to repair it.
“Can you find out when it was pulled out?”
It doesn’t matter whether the monitoring line is pulled out or not, the key is the time when the monitoring line is pulled out.
If it had been pulled out long ago, it would be fine, but if it had been pulled out before the crime, then the landlord would be highly suspected of committing the crime.
“We checked the monitoring in the computer and the last recording time was in March this year.”
March?
Everyone around the conference table straightened their backs and sat back in their chairs.
Since the earliest video recording time in the computer was in March this year, it means that it should have been more than half a year since the video cable was unplugged.
Looking at it this way, the landlord’s suspicion of committing the crime is basically gone.
“The landlord should not be the murderer, otherwise, it would be too obvious.”
"That's not necessarily true. What if the other party does the opposite?"
"In our previous cases, the thief was called "catch the thief," and the person who reported the crime was the murderer. There are many."
"I don't agree with the view that the landlord is the murderer, because it is unlikely that the other party planned the murder six months ago. If the other party really started planning the murder six months ago, then he would not have left so many traces and clues at the scene."< br>
"Okay, even if the other party didn't plan the murder six months in advance, why did he unplug the monitoring line? The equipment was not damaged, so why did he lie and say that the equipment was broken?" "Isn't this simple? What the other party did. The reason is simply to save electricity. After all, the operation of monitoring equipment consumes a lot of electricity, which is a huge expense over time.”
The surveillance equipment in the building is the focus of the criminal police investigation, so everyone discusses this point more.
Qin Yong thought for a while, then asked:
"How is the surveillance investigation on the road outside the building going?"
Sun Jun shook his head: "There are no big clues. ”
“There are two streets outside the house. There are surveillance cameras at the intersections of these two streets, but there is no surveillance near the rental house. ”
"We checked the time period when the crime occurred last night, and there were no special findings in the surveillance of the two nearby intersections."
"According to the clues provided by the current investigation, the footprints left by the other party were high-heeled shoes. , we focused on the female information in the nearby surveillance, but we didn’t find the female with a height of 178 cm and a weight of 70 kg. , wearing high heels to deliberately hide her gender."
Qin Yong looked at Lu Chuan, Lu Chuan was the one who had the most say in this matter.
Lu Chuan used to sit behind Liu Guodong when attending case analysis meetings. In recent times, he followed Liu Guodong and sat in the inner circle of the conference table.
This is the rise in status brought about by strength.
Every time there is a case analysis meeting, the people sitting in the inner circle of the conference table are the middle-level people of the criminal investigation detachment.
This conference room is also the conference room where morning meetings are held. The middle-level people sitting in the inner circle have name tags on the tables.
Not in the middle level, there were only two people, Zhang Hui and Lu Chuan. Zhang Hui was in the inner circle because Ren Qiang was recuperating in the hospital and was acting as an agent for the second operation team.
Lu Chuan was different from him. In this situation, he relied on his strength to sit in the inner circle, making it easier for Qin Yong to ask questions.
“Male!”
Lu Chuan’s answer was more positive, unambiguous and decisive.
"Xiao Lu, can footprint analysis determine gender?"
Everyone sitting here is an expert in criminal investigation. Although they may not necessarily know that much about spot investigation technology, they are familiar with some basic situations. Still have some control.
Footprint identification and analysis is inherently difficult, and gender identification through footprints is definitely very difficult, because some people are born with smaller feet, but they can be male, and some people are born with big feet, and she can also be female.
“Basically I’m sure.”
Lu Chuan answered affirmatively and then explained: “From the identification and analysis of the footprints, the other party’s shoe size is 43, and his height is 1.78 meters. The difference between left and right is no more than two centimeters, and the weight is about 70 kilograms."
"Judging from the ratio of height to weight and shoe size, this is a typical male characteristic."
"General. Generally speaking, even if women are 1.78 meters tall, most of them have shoe sizes of 40, and very few can reach size 43. ”
"This is determined by the different physiological structures and body proportions of men and women."
"In addition, based on the blood spray at the scene, I reconstructed the crime scene."
"Specific details Let’s not talk about the process for now, just talk about the puncture wounds on the arteries of the two male victims” (End of Chapter)