Police Detective

Many police officers had already evacuated the scene. Bai Song was supposed to be able to rest this morning, so the unit had nothing to do with him, so he stayed at the scene. Several leaders of the criminal investigation team saw him and greeted him one after another.

"Brother Sun, are the forensic doctors from the Municipal Criminal Investigation Bureau better than you?" Bai Song asked curiously.

"How do you say, do you think the forensic doctor is a doctor or a policeman?" Sun Jie asked.

"You graduated from a medical university, so of course you are a doctor," Bai Song said. "Although you are also police officers, forensic scientists can also serve in procuratorates, courts and other departments in addition to the public security bureau. You must be a doctor."

"Yes, he is a doctor." Sun Jie nodded: "The profession of doctor is pronounced as 'doctor' in English, and this word, in addition to doctor, also means 'doctor'. You know this."

Seeing Bai Song nodded, Sun Jie continued: "Why do doctors in larger hospitals have higher standards? In fact, the same is true for forensic doctors. The larger the place, the more bizarre cases the forensic doctors see, and they naturally gain more knowledge. The more there are, the higher the level will naturally be.”

"It's true, he's no different from a doctor." Bai Song stood outside the corridor. From his angle, he could see Sun's body. Although observing the body at such a close distance still made Bai Song feel a lot of pressure, it was still more stressful than two months ago. In the past, Bai Song had made great progress, and there was no problem if he just stared at it carefully.

"This person's face is a little dark," Bai Song said, "Could he be suffocated to death?"

"Yes!" Sun Jie said in surprise: "You can see this, it's good. What you said is true. We are also considering this issue. There was blood bruising on the face of the deceased Sun, accompanied by petechiae. Bleeding and cyanosis of the eyes are indeed a possibility of death from mechanical asphyxiation. However, according to the theory of modern forensic medicine, these symptoms do not mean that this is death from asphyxiation, because this situation also exists in many diseases and other ways of death. "

"Disease? If it's a disease, it's unlikely." When Bai Song said this, the isolation belt outside was opened, and three or four policemen came up from downstairs.

Daguangli community is an old community, with three households on one staircase and six floors to the top. Sun’s residence is on the sixth floor. Sun is renting a house with a monthly rent of only 600 yuan. The landlord was shocked when he heard the news. He was also taken away by the police on duty at the station.

Of the two neighbors of Sun's residence, there is no one in the house in the middle. The call was made to the house opposite. There was only a middle-aged woman at home, and she had also been taken away to collect the records.

Four policemen came up, two of them were criminal policemen from the branch. One of them was the deputy captain. Bai Song had met him before in the detachment, but he couldn't name him. The other one was Duan Fei, and the remaining two must be from the city. The forensic doctor.

The leading forensic doctor was almost 40 years old and wore a pair of very light glasses. Although he was wearing a police uniform, he was spotless and very neat. The four forensic doctors, including Sun Jie, began to wear shoe covers, headgear, gloves and other necessary equipment at the same time, and entered the scene together, leaving Bai Song and the deputy captain of the criminal investigation to watch outside.

Bai Song didn't know what to say, so it was better not to say anything. He still felt a little uncomfortable looking at the corpse, so he sat down directly on the corner between the fifth and sixth floors.

There is no heating in the corridors of the old community at all, and the windows at the corners of the corridors also have cracks. It is the "heavy snow" period of the 24th solar term, and it is still very cold in the corridors. If he sat directly on the ground, his butt would be frozen to the bone after a while. Bai Song could only squat in the corridor to rest for a while. He was really tired from standing all the time.

Crouching in the corridor, Bai Song looked up. From this angle, he could only see the roof wall and stairs.

In an old-fashioned building, there is a skylight between the sixth floor and the top floor, but not every unit has it. There are 5 units in this building. The crime occurred in unit 3, and the ones leading to the roof are units 2 and 2. Unit 5, so there is no possibility that anyone can get to the roof from here.

Bai Song looked at the dilapidated roof. This community was really old. The walls of the corridors were very dirty. Even the roof of the sixth floor was dark. He didn't know what it was.

The forensic doctors may still need some time, but Bai Song was not idle either. He went downstairs.

Not sure if it was intuition or simply obsessive-compulsive disorder, Bai Song wanted to go to the top of the building and have a look. Since this unit did not have access to the roof, the institute did not arrange an inspection from above. After going downstairs from Unit 3 and leaving the cordon, Bai Song went directly to Unit 2. The second unit was very quiet, and there was no one in the corridor. After Bai Song reached the sixth floor, he saw the road leading to the rooftop.

This is a passage similar to the entrance of a well. The way to go up is to step on the steel ladder embedded in the wall. After climbing to the top, open the lid above and you can reach the rooftop.

Bai Song also learned about on-site investigation when he was in school, and gained some experience in several practices. He could easily tell that someone had climbed up this steel ladder recently. However, it was basically impossible to extract such traces. Bai Song took a closer look and started climbing directly. People who have been to old buildings should have the impression that the first step of this kind of steel ladder is usually more than 1.5 meters above the ground. It is difficult for ordinary people to climb up alone without the help of stools or ladders, but for Bai Song, this not a problem.

Bai Song was very careful when opening the roof cover. The cover was a wooden frame covered with iron and was not very heavy. Bai Song lifted it up easily.

Looking around secretly, Bai Song saw two people, Ma Detachment and Hao Zhenyu.

Seeing that his colleagues had already come up, Bai Song opened the lid and climbed out.

"Ma detachment, Master Hao, you two are also here." Bai Song stepped forward and said hello.

The Ma detachment smiled slightly: "Do you also think there is a problem here?"

"Ah? No, I just think we should take a look here." Bai Song said truthfully.

"Well, it's a bit more meticulous than an old scout." Master Hao nodded, "Come and take a look here."

Bai Song immediately followed Master Hao's finger and looked forward.

"Bai Song, I heard that you almost fell from a tall building some time ago?" Hao Zhenyu pointed to the guardrail here.

The roof guardrails of old houses are different from those of high-rise buildings. The guardrails here are only 15-20 centimeters high. They are not used to prevent people from falling at all, but are only used to collect rainwater and discharge it from the drainage outlet.

Following Hao Zhenyu's line of sight, Bai Song could clearly see that there were three or four very obvious rope marks on the rooftop of Unit 3, where the deceased Sun lived. Master Hao used a tool to extract several pieces of very fine rope. fiber.

"This scene has been professionally handled." The horse detachment looked around thoughtfully.