Bai Song was somewhat surprised by the reaction of Zhao's detachment, because the first police officers to go to the scene were from the police station. Zhao's detachment was not responsible for the problems of these police officers, but he was worried about them, which showed that Zhao's detachment still attached great importance to the cases of his branch and cared enough for his comrades in his branch.
The case went on until late at night, and Director Wei also came over. Experts from the city, bigwigs from the Criminal Science Institute, and others kept coming over, and they all came to the same situation.
Since the decomposition products of cyanide cannot be found, there are two problems. The first is hydrogen cyanide **, and the second is that someone took away the residues of the decomposed sodium cyanide.
Neither version is supported by the surveillance video.
Of course, it would be hard to say if the crime was committed by someone else in the building.
The fourth floor where Xiao lives is mostly occupied by rental houses, but this is not the case on other floors. There are basically no videos, and some of them are broken due to years of disrepair.
The entrance and exit of this building are video-recorded, which shows that no outsiders came in at the time of the incident.
If the suspect has been lurking for several days, or even more than ten days, and has exceeded the coverage of the camera, then the suspect must not have left yet...
This is unlikely. There are many residents in this building, and it is indeed an exaggeration to say that he came in ten days in advance. He would definitely be discovered. We would rather believe that this person climbed over the wall and climbed through the window to avoid surveillance.
After investigation, no traces were found.
"Huadong, if it were you, could you make the traces so good?"
It’s past three in the morning and everyone needs to rest as they will have to fight again tomorrow morning.
There were a few people in the detachment and the headquarters who had not been busy with cases before, but were now arranged to be on night duty in case any intelligence could not be passed on in time.
The five people from the Fifth Brigade were arranged in a small room with only two bunk beds and a folding bed in the middle. There were quite a lot of people, but this was already a very good condition.
We were all very tired, but couldn't sleep.
"I can't do it." Wang Huadong shook his head: "But someone can do it, Master Hao should be able to do it."
"Not necessarily," Liu Shuyuan said, "I also went to see the scene of the stairs, and I felt that it was not difficult to avoid being discovered in the chaos."
"Anyway, I don't think I can do it." Wang Huadong said again.
"That's because I'm an outsider." Liu Shuyuan said he would still listen to Wang Huadong: "This case is too difficult. It's all Wang Liang's fault."
"Why blame me? I'm the only one who doesn't want any cases to come to me, and you guys are looking forward to having something to do every day, but now that something has happened you blame me?" Wang Liang said unhappily, "This life is unbearable."
"Your ability to plant the flag in the opposite direction is too strong." Liu Shuyuan said.
"Depend on!"
…
It's no use saying anything else, this case was really difficult to handle.
At this time last night, everyone was sleeping. When they woke up in the morning, they were still complaining about being bored. But it wasn't long before they were slapped in the face by reality.
"What Master Hao said is no different from what you said, right?" Bai Song asked.
"Well, but Master Hao is a trace expert, not a footprint expert. He is not 100% sure about the situation in the corridor, but he has indeed found no suspicious circumstances. There are no signs of a struggle in the corridor. It seems that Xiao was poisoned after entering the corridor, then fell to the ground, fainted, and then died." Wang Huadong said.
"Isn't he a footprint expert?" Liu Shuyuan asked curiously.
"It can be considered, but he is not the best. He is better at leaving traces." Wang Huadong explained.
"I don't believe that this kind of thing could be done by a group of masters. I have almost investigated everything about Xiao's kindergarten, and he didn't offend anyone." Bai Song said, "It's really weird. Could it be that he inhaled some cyanide on the way home, and then he was poisoned after a long time?"
"The level in his body is indeed not high, but this is not realistic. Mild cyanide poisoning can be relieved on its own. If it is moderate, it is impossible for him to go home and eat." Sun Jie said.
"It's too weird, go to sleep." Bai Song covered himself with the quilt: "This spring bed is too short."
…
At around six in the morning, everyone got up one after another.
Three hours of sleep is normal when you are busy with a case. Everyone has been resting for these days, so I didn’t feel anything on the first day.
Criminal Investigation Detachment of Xingang Branch.
"Another person died?" Bai Song was terrified when he heard the news: "Why didn't you tell us?"
"Don't worry, Inspector Bai. The man has been caught." The local detective was a little panicked when he saw Bai Song's momentum.
"He's been caught!" Wang Liang jumped in front of the man and asked, "How did you catch him?"
"Captain Wang, please let go. It's not a big deal..."
This is indeed a troubled winter.
Last night, a fight broke out at a nearby construction site over a dispute over wages. In the second half of the night, the fight got a bit intense, with several people fighting with weapons, and one of them was so violent that he accidentally beat a foreman to death. The construction site was a dark place to begin with, and using those "weapons" on the site was really dangerous.
The suspect wanted to escape, but he was caught within two hours after the police were called, and the trial was almost over.
"There have been murders for two consecutive days. What's the expression on your face, Zhao Detachment?" Wang Liang was a little gloating. "I thought these two cases were the same case."
"Death is not a good thing after all." Bai Song felt that he was happy for nothing: "Let's go eat something first. It looks like there will be no progress in yesterday's case."
The cafeteria was not closed at night because there was a sudden case yesterday and the people on duty in the detachment went out to arrest people. When they came back, they bought a lot of hamburgers and other things and put them in the cafeteria, but they didn't need to finish them at this time.
It's the middle of the night and the only things you can buy are those open 24 hours a day.
At this moment, the cafeteria chef arrived early and cooked porridge, and also prepared pancakes and fried dough sticks. The five people had a simple meal and chatted with several people in the cafeteria and obtained more clues.
The New Year's Eve here has always been turbulent in recent years. Murder cases are relatively common, but there are really a lot of fights and people demanding wages. We encounter them every week in every police station, and in the entire branch, we see them every day.
"The Zhao team is under much less pressure now." Bai Song said, "They have a new case, and they caught the man so quickly. Their ability is still there. From the looks of it, we will probably be responsible for investigating this cyanide poisoning case starting today."
"It's okay for us to chew on tough bones!" Wang Liang patted his chest.
"Okay, I'm still confident anyway!" Bai Song said, "It's only been one day, I don't believe that the murderer is smarter than all of us combined."
"Yes, come on, check!" Sun Jie nodded: "Bai Song, tell me about the investigation plan."
"Uh..." Bai Song paused: "Let's have a meeting later to listen to the leadership's opinions..."
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