Chapter 1166 Is there any evidence?

Chapter 1166 Is there any evidence?

Jiang Yuan and others arrived late. They were the seventh team to come for help, and there were three more teams behind them.

Among them, at the front are the Changyang City Criminal Police Detachment, Shuidong District Bureau and other large local criminal investigation units in Changyang, followed by the provincial criminal investigation team who came to help, and the criminal police team led by well-known experts such as Ge Zhibing and Jiang Yuan.

For normal serious cases, such heavy-duty units may not necessarily take over directly, but more often provide guidance or support.

But in this case, faced with a murder case directly targeting an academician, units such as the Changyang City Criminal Police Detachment could only participate as part of the case.

The direct person in charge of the task force is already the Criminal Investigation Bureau of the ministry. At this time, several people from the Criminal Investigation Bureau were following behind the director of the Changyang City Bureau, thinking and listening to everyone's reports.

The director walked relatively quickly in front of the first few display boards, but walked slower and slower in the back. Obviously, more time brings more thinking, and this is true for both parties. To a certain extent, this is also a brainstorming exercise that belongs to the Chinese officialdom, which is serious and formal and requires a huge amount of brain cells.

Huang Qiangmin waited until the leader's team came to the front. Seeing that the whiteboard on his side was still blank, he asked Jiang Yuan: "Do you want to fill in something?"

"Which aspect? Oh——whiteboard? Wait a minute——" Jiang Yuan was actually quite nervous. He was flipping through the pictures quickly.

For a murder case, there are too many photos taken at the scene. It is conceivable that multiple criminal cameramen probably never left with their hands on the shutter.

If you have enough time, you can also select these photos later. Or, a quick look at it is not unacceptable.

But if we rush for time now, the above solutions are naturally not feasible.

Jiang Yuan flipped through the pages desperately without finishing the photos, so naturally he had no time to analyze anything on the whiteboard.

His methods of solving crimes are still different from normal criminal investigation methods. Normal criminal police usually start by analyzing the case. In a typical murder case, they should first analyze the criminal's activities at the crime scene, how they entered the scene, how they killed, whether the two parties interacted and struggled, and whether the victim There is resistance,

Whether the criminal was injured, and finally, how the criminal disposed of the body, how he left the scene, etc.—"

As for the academician's murder case, the murderer's activities at the crime scene were clear, so the investigation could fast forward to confirming the identity of the murderer.

At this time, two directions naturally arise, whether to investigate through the murderer entering the scene, or to investigate through the murderer leaving the scene.

According to this idea, when investigating the direction of entering the scene, you can choose to investigate the vehicle. Through the ownership and origin of the vehicle, you can continuously trace forward to see if the murderer showed his feet on a certain road section, such as passing through a certain vehicle stuck point. When the face was revealed, or in a simpler model, the car belonged to the murderer himself,

Or purchased recently·—.

Of course, no one is too optimistic about the origin of the car or the road it belongs to. If the murderer could be found directly from the car, there would be no need for him to put on a ski mask, or even run away.

Surrendering yourself makes it easier to survive. Relatively speaking.

The way the murderer left the scene also had some sense of anti-reconnaissance.

Leaving by mountain bike, it is not easy to trace the origin of the motorcycle, nor is the route of departure.

However, the murderer placed the motorcycle here in advance, which means that the murderer had visited the spot and prepared beforehand.

Investigating based on this point may be a breakthrough.

Analyzing along this line of thinking, the murderer should have stepped on the spot more than once, and may even have stepped on the spot in other places that Lou Yuantu frequented. If we visit and investigate this point, we may be able to make a breakthrough.

If you think about it further, why the murderer was able to wait near the intersection on time, and where did he get the news, or why he just kept waiting all day long, is also an idea.

If it's the former, catching the traitor might solve the case immediately. If it's the latter,

You might be able to identify the person directly by asking drivers or construction workers passing by, nearby takeaway guys or even takeout restaurants.

Jiang Yuan is more interested in looking for physical evidence and then conducting investigation and analysis based on the physical evidence.

From the perspective of criminal investigation, this method is obviously a bit rigid and backward. After all, it may be easier to break through by adopting other detection angles.

Jiang Yuan was quite good at this aspect, and he also put a lot of effort into the analysis of physical evidence at this time.

It wasn't until the director was about to come over that Huang Qiangmin hurriedly urged him again. Jiang Yuan hesitated for a moment, got up and wrote a line on the whiteboard: source of vehicle, cigarette butts.

Before anyone else could ask questions, the director had already walked over.

"Jiang Yuan is here too. I heard that you just completed a major drug trafficking case——" The director said some news from the intranet, then looked at Jiang Yuan's whiteboard and couldn't help but smile: "To put it simply, Tell me, what do you think?"

Jiang Yuan glanced at Liu Jinghui and said first: "I saw the vehicle scene and some related photos of the vehicle stuck spots.

The management of muck trucks is still relatively strict. I think there should be gains from investigating the source of the vehicles. "

"Okay." The director nodded. This was not a surprising idea. The previous teams had mentioned it. Jiang Yuan said, "From the current point of view, the murderer should have waited at the scene for a long time. The murderer smokes. It can be seen from the ashes in the cab that there are ashes but no cigarette butts, which means that the murderer is waiting at the place where he is waiting. There is a high probability that there are cigarette butts left."

The director nodded.

Yu Wenshu next to him explained, "Cigarette butts are already being collected at the scene. However, the wind was very strong that night. There were cars parked near the location where the crime vehicle was parked. It will take some time to determine the people to whom the DNA of these cigarette butts belongs."

The DNA of cigarette butts is very easy to obtain and is one of the favorite DNA carriers of the police. However, DNA matching may not be able to match directly. In fact, because there are many cigarette butts at the scene, it may be necessary to check them one by one to determine the DNA of the murderer. This step is a necessary step, but it will definitely not be soon.

The director was responsible for being a good person and smiled: "The two directions that Jiang Yuan considered are both very promising-..."

"The last point is the question of the murderer's whereabouts." Jiang Yuan saved time for his leader and said: "I tend to think that the murderer went to the northeast."

"Huh?" The director and others who had already looked at six sets of display boards did not expect Jiang Yuan to give such a direct answer. The bodies that were about to move were stiff for a moment.

The director immediately asked: "Do you have evidence?"

At this time, he needed evidence.