On the projector, eight photos were arranged in two rows of four photos each.
"These are on-site photos taken during the current survey." Each photo is marked with a serial number, from left to right, from No. 1 to No. 8.
Ren Qiang stood up and walked to the projector, pointing to the photo numbered No. 1: "The bag containing the broken corpses has clear traces of rolling down." The photos at the scene were all taken by Lu Chuan.
In addition to the black plastic bag, the photo also shows the direction of the bag rolling down.
"There are traces of the bag rolling on the ground, from east to west."
"Let's take a look at the second photo, which shows the same rolling traces from east to west."
"And all the bags are relatively evenly spaced. There is one almost every 200 meters." There are eight plastic bags, one every 200 meters, with traces of rolling from east to west.
That's all the current photos show. Everyone waited with bated breath for Ren Qiang to continue his analysis.
"From this information, it can be determined that the murderer's direction of travel in Folk Street was from east to west."
"Moreover, the other party took a vehicle such as a car to dump the body." Vehicle? Zhang Hui raised his hand: "Team Ren, why is it a vehicle such as a car?"
"Although the eight body bags are a large number, there are not many body parts in each bag. An adult can definitely carry them."
"Or, is it possible that the other party is riding a motorcycle?" Zhang Hui's question was very reasonable, and many criminal police officers nodded secretly.
Eight plastic bags containing corpses have been identified by forensic scientists and current investigators. The weight is indeed not heavy and an adult can carry it.
Is there any specific reason why Ren Qiang concluded that the murderer took a vehicle such as a car? You must know that the vehicle used or taken by the murderer after dismembering the body is very important.
This is an important aspect for the criminal police’s subsequent investigation and analysis. If this judgment is wrong, the investigation of the case will be completely different.
The murderer was obviously on foot, but the direction of solving the case was locked in a car. In that case, there would be no need to talk about solving the case.
Ren Qiang held his right hand empty: "First, from the analysis of the traces of the plastic bag rolling down, the possibility of the murderer walking can be basically ruled out." Zooming in on one of the photos, Ren Qiang continued to explain: "This was taken by Lu Chuan using the central photography method Photo of the first plastic bag.”
"Look at the traces of the plastic bag rolling down. There are obvious scratches on the ground. The plastic bag rolled several times."
"And here," Ren Qiang pointed to a broken ice ballast on the wall of the plastic bag: "This broken ice ballast is directly above the black plastic bag. The ice ballast in other places is intact. Only this broken ice ballast should be the corpse. The bag was smashed.”
"If the murderer dumped the body on foot, there is a high probability that the body bag will not have multiple rolling marks, and it will also be difficult to break the ice on the wall." Ren Qiang said as he picked up the garbage bag in the corner of the conference room and packed it away Then threw it out.
Sure enough, the bag stopped quietly in the distance, with no sign of rolling. Ren Qiang picked up the bag and threw it out with great force: "It is impossible for the murderer to throw the body with such force." The bag rolled out, simulating the situation of the murderer throwing the body.
"Then why is it a car? The murderer might also be riding a motorcycle." Ren Qiang led you to nod: "Eight bags, except for the meat buns..." Ren Qiang glanced at the pale Wang Shuai.
This kid... is a bit miserable.
"Except for the bags outside the Roujiamo shop, we didn't take any first-hand photos of the bodies dumped. The other bags were about 200 meters apart."
"How likely is it that the murderer deliberately created this distance?" Throwing a bag every two hundred meters, was this intentional?
Most people shook their heads, this was unlikely.
"So, I think the other person may have been sitting in a car and throwing away body bags intermittently."
"If the other party is riding a motorcycle... it's not very practical in operation." Qin Yong nodded. Ren Qiang's analysis made sense: "What about the surveillance? How is the surveillance and investigation going?" Zhang Hui is responsible for the surveillance and review.
"There are two surveillance cameras in Folk Street, one on each side of the street. We have marked all vehicles and pedestrians entering and exiting Folk Street yesterday, and are now preparing for investigation." All mechanisms for detecting murders are very complete. , the process is also very complete.
Each group of people has a plan in advance on how to divide the work. Even if someone is on temporary leave or is unable to participate due to other cases, there will still be AB positions for supplementary replacement.
After the incident, the investigators, forensic investigators and other criminal police conducted investigations together. In fact, although this case has a bad impact, it is not complicated from the perspective of investigation.
The body was dumped on the street, and there were cameras on both sides of the street. Even if everyone entering and leaving the folk street was checked, the murderer could still be found.
At present, it is obviously easier to find the murderer.
"Focus on investigating all the vehicles entering and exiting Folk Street last night, especially in the second half of the night!" The work tasks were deployed quickly, and the relevant vehicle information was quickly locked.
There were a total of fifty-one vehicles and more than one hundred criminal police officers, who set off immediately. The current survey office. When the frontline criminal police attacked, Lu Chuan was not idle at the rear.
Dismemberment cases are relatively unfriendly to current investigators. Because all body fragments must be photographed one by one and kept in files.
Obviously, these tasks cannot be completed at the scene where the body parts were found, and they can only be done back. Fortunately, Shen Yan also needed to examine the body, so the two of them worked together, so they didn't feel tired while working together.
Click! After taking another picture of a corpse, Lu Chuan straightened his back and breathed a sigh of relief when he saw that two-thirds of the work had been completed.
"The height of your dissecting table is not appropriate. You always bend over and work, which makes you very tired." Shen Yan was marking and inspecting the body parts: "That's because you are too tall. The height of the dissecting table is regulated. "Lu Chuan smiled and continued working.
After taking a piece of corpse that looked like a waist and belly, Lu Chuan was about to take a photo, but suddenly stopped.
"What's wrong?"
"This... mark... seems a little wrong." Lu Chuan carefully placed the corpse on the autopsy table. Under the bright light, there was a speckled stain.
The trace is brown and has a regular edge, like a small circle.
"Traces?" Shen Yan looked at the traces. As a forensic doctor, Shen Yan's professionalism is unquestionable: "Is it... a blood stain?" Human blood changes greatly at different times and in different environments after death. .
Especially in the eyes of professionals, the size, color, and edge shape of these marks all have special significance.
"Could it be that other body parts of the body rubbed on it?" Lu Chuan pondered for a moment and shook his head slightly: "This is a drop-like blood stain. I have never seen it on other body parts." The body was refrigerated for a short period of time, so the body was The blood in the mass coagulated, and there was no trace of blood after the murderer dumped the body.
However, as time passed, the corpses thawed, and many of the corpses rubbed against each other and became stained with friction-shaped blood stains.
But what Lu Chuan found now was dripping blood. In bloodstain morphology analysis, dripping bloodstains can determine many static on-site indicators.
