wavenovel Chapter 1233 Patrolling the Streets
Chapter 1233 Patrolling the Streets
Chapter 1233 Patrolling the Streets
Mu Zhiyang was in the front, marching with the momentum of six horses, leading Jiang Yuan and others along the road.
At the other end of the road, several policemen from the Criminal Police Brigade stared at the roadside vendors, hoping that the criminals would not be able to bear the pressure and turn around and run away.
In fact, this kind of road blocking work is often done by police officers from the police station, or two teams of other criminal police who are not from the special task force are arranged.
But now it has come to the last step, it is time to arrest. Who would be willing to give up the great achievement just to save some effort?
On the contrary, the criminal police of the Criminal Police Detachment of Zhengguang Bureau are now at their peak.
Solving homicide cases is no longer a rare thing for Jiang Yuan and Jiang Yuan's special case team, but for ordinary criminal police officers in the criminal police detachment, arresting homicide suspects is always a rare opportunity.
In fact, Maki Zhiyang is quite rare.
He took the lead, walked to the street stall selling roujiamo with his chest held high, stared at the kitchen knife in his hand, and said, "Boss, we are from the criminal police team, let me ask you a few questions."
"I heard someone died?" The boss was a short and thin man. He chopped the kitchen knife into the chopping board with a thud and asked about Mu Zhiyang instead.
"Where did you hear that?" Mu Zhiyang did not answer, but stared at the boss and his kitchen knife with sharp eyes.
Wen Yong stepped forward, grabbed the handle of the kitchen knife, and took it in his hand.
The short and thin boss of the Roujiamo stall laughed out loud: "We made you nervous... We have a group of people. We heard that you were here for inspection or something, so we were going to run away. But then you said it wasn't the Urban Management. By the way, do you want some steamed buns? They're 8 yuan each, and I'll give you more meat."
"Not now." Mu Zhiyang lifted the crotch cloth under his stall, looked at him and asked, "Do you have any more knives?"
"No, we all conquer the world with a kitchen knife..."
"No carving knife or anything like that?"
"I use the best pork belly, take a look..." the short and thin Roujiamo boss said as he picked up a spoon and scooped meat from the pot to show a few people.
Jiang Yuan stepped forward at this time and asked, "Where were you last Tuesday morning?"
The laboratory reports came out one after another, and Jiang Yuan also reopened the "temporary +1" to determine the time of death.
Up to now, Jiang Yuan can shorten the victim's death time to within two hours in the morning. By this calculation, the time the murderer took action should be shorter than the time when the cell phone signal disappeared. In other words, the cell phone was most likely disposed of by the murderer, and the victim was held hostage for a very short time.
To put it in a less pleasant way, the murderer must have been busy during the hours he held his victim hostage.
No matter when the body was dumped, it would take a long time just to kill the person and deal with the body, or to deal with the mobile phone, so the alibi on Tuesday morning is very important and is the key for the police to screen these food sellers.
The owner of the Roujiamo stand smiled nonchalantly and said, "Where else can we sell Roujiamo? We'll just sell Roujiamo here."
"What is the exact time?" Mu Zhiyang turned around and took out a notebook to make notes. He is also a criminal policeman.
"I usually arrive at 6 o'clock in the morning. If there are people opening the shop, I will open it. If there are no people, I will tidy up first, then open the takeout, and then chop meat. I will work until the afternoon to take a break, and then continue in the evening. My wife will buy meat and cook meat at home. I am very tired..."
"7am to 1:6pm? Or 1:am to :pm?"
"6:2 to : is still about right. Some takeaways are bought very late now..."
"Which other vendors were with you at the time and did you notice? Which ones were open?" Mu Zhiyang continued to ask. These questions should be asked to each merchant, and the transcripts can be compared later. If someone is talking nonsense, it can be easily discovered.
Correspondingly, if several people can prove someone's alibi, he is basically removed from the list of suspects.
For the police, it is important to make a list of suspects, and it is even more important to narrow the list of suspects. However, once the mechanism is wrong and the wrong sieve is chosen, so that a suspect is missed, the entire list is ruined. This is the case with the silver case and the gold case.
Maki Zhiyang asked a few more questions and marked a star on his notebook.
This means that suspicion has been basically eliminated, but this is only the score given by Mu Zhiyang. Wang Chuanxing and Liu Jinghui will also give their own scores and choose whether to eliminate the suspicion.
The current suspect list consists of more than 60 households and less than 200 people. After all of them are screened, if a highly suspicious person can be screened out, this screening will be considered a perfect conclusion. Anyone who wants to write an article later can do so.
But if the suspects cannot be found, other methods will be needed, such as technical investigation of mobile phones, image investigation and surveillance, and all of them only require the suspects on the list to report their location themselves.
Nowadays, people basically never leave their mobile phones, and in Beijing, there are enough base stations to triangulate most locations. Information such as where someone was at a certain time is the easiest task for technical detectives.
Similarly, using surveillance to find criminals is naturally difficult without knowing the time and location. However, it is very simple to ask each suspect to report which intersection he passed during a certain period of time, and then investigate and verify it.
As for if someone is unwilling to speak, or there is no surveillance footage of the time and place he speaks, just raise his suspicion level.
For ordinary cases, two criminal police officers or several people from a squadron or a brigade may be sent to investigate. Suspects from more than 60 households is still a lot of work, but when it comes to Jiang Yuan's backlog case special team, the team itself has more than 30 people, and then a brigade is randomly assigned to it, which has about people. Even if half of them are dispatched, and some are arranged to block the intersection, do on-site investigations, and protect Jiang Yuan, the rest will be divided into teams of two or four, and there will not be many suspects.
Jiang Yuan followed Mu Zhiyang to check the owner of the roujiamo stall, and then checked the owner of a stall selling French fries and fried chicken. When he wanted to go forward, he found that he had questioned everyone on the street, and the remaining two or three vendors were surrounded by police officers who outnumbered themselves by several times.
"Change the street?" Jiang Yuan asked.
"That's all. It's only this big. We came out together. There's a small vegetable market three kilometers away and we've almost asked everything." Liu Jinghui has been paying attention to the progress of all aspects.
Jiang Yuan frowned, looked at Liu Jinghui again, and asked, "Are you not a cook? A pharmaceutical manufacturer? A chemical factory?"
The benzoic acid and acrylamide found before are also used in medicines, but the content in the medicines is too small, and it is unlikely that people who take medicines will come into direct contact with them, and then have secondary contact with the plastic belts. As for the chemical factories that can come into contact with them in large quantities, Jiang Yuan is actually not sure. For example, small workshops nowadays know to wear gloves when handling these chemical raw materials.
Liu Jinghui said: "I checked and there is no chemical factory near Jinshan that uses these two raw materials at the same time. In fact, even if they are used at the same time, it is not necessarily that one person can get access to them. I also checked chemical stores and the like, and there are no such stores nearby. If that doesn't work, I can expand it and look at their distributors and suppliers, but there is no rush..."
"why?"
"If there are any vendors who haven't set up their stalls, I've asked someone to look for them."
"Okay." Jiang Yuan nodded. Food vendors who fail to open their stalls on time are more suspicious.
"Stand aside, is this your box?"
In the distance, Xiao Si's voice rose several degrees and came from a long distance.
Jiang Yuan and others couldn't help but look over.
Xiao Si was seen standing in front of the pancake stall, just as he took out a box tied with light blue plastic tape from under the cover of the other party's tricycle.
The writing went smoothly the day before yesterday. When I got up yesterday morning, I rewarded myself with X steaks. One of them might have been fried too raw, and my digestive system has been working very hard. As a result, I didn’t finish a chapter after typing for a whole day... I got up this morning and made sure I had digested it...