Chapter 787 Difficulty

Chapter 787 Difficulty

The factory building was very large and damaged as if it had been bombed.

The red brick exterior walls were dirty and broken, and the ceiling was tattered. The concrete pillars used for support looked okay, but they were covered with graffiti, urine stains and dirt from unknown sources. The ground inside the factory building was uneven, sewage was flowing, and there was feces and urine of people, dogs, cats, mice, birds and insects everywhere.

By the relatively intact walls on the east and west sides of the factory building, there were some bricks and stones piled up. With a few plastic sheets covered, it was a shack where people could sleep.

Zhang Jigu, a man with sunken cheeks from drug abuse, was handcuffed with his hands. He pointed to a corner and said, "I was lying there at the time, covered with something, and didn't dare to move."

"Which direction was your head facing?" Meng Chengbiao followed Jiang Yuan here, asking for details all the way.

Details are the hardest to fabricate and the easiest to reveal.

As the saying goes, people can't imagine things they have never seen. If Zhang Jigu hadn't seen a corpse, he probably wouldn't have thought of this at all.

At the scene of identification, details are the key steps to success or failure.

Zhang Jigu looked back and said, "The wind is too strong over there, facing the door."

Meng Chengbiao walked over, bent down, and looked at it for a while with his head almost touching the ground.

The ground was too dirty, and there were all kinds of insects that were more terrifying than rats, so Meng Chengbiao couldn't lie down.

It also shows that this case is still not worth a serial murder case.

"What are you covering?" Meng Chengbiao asked again.

Zhang Jigu thought for a while and said, "Bedsheets, clothes, and paper piles on top, the kind of paper used to pack express delivery. It's piled high to prevent wind. I don't come out when I sleep."

"What should I do if I need to go to the toilet? What should I do if I need to pee?" Mu Zhiyang asked.

Zhang Jigu said: "Some people wet their pants directly. I mean some people... I usually drink less water and don't go to the toilet at night."

"How long have you slept here?"

"I slept inside all day."

"What time exactly?"

"It was around noon. It was quite cold, so I didn't get up. As a result, several of them arrived. I know one of them. His nickname is Broken Palm. The last three fingers of his left hand were chopped off. He was quite cruel. I hid and didn't move."

"How long did they take to dissolve the corpse?"

"It took several hours."

"How many hours, with so many cardboard boxes on you, didn't you make any noise?"

"I was wearing clothes and a down jacket. I'm not a homeless person... I quietly pushed the cardboard box away and hid behind it." Zhang Jigu said seriously, and then said: "If you don't believe me, I'll show you."

"You'll have a chance to show it later." Meng Chengbiao held the man down and continued to ask questions.

After hearing this, Jiang Yuan walked towards the location where Zhang Jigu pointed out the dissolve corpse.

When using chemical agents to dissolve corpses, most people subconsciously think that if the solvent is appropriate, the corpse can be dissolved quickly.

In fact, it is not. On the contrary, it takes a certain amount of time to dissolve the corpse. If the operation is smooth, it often takes several hours. Sometimes, it is necessary to stir or even add chemicals.

Similarly, when burning corpses, many people think that using some fuel or pouring some diesel can cremate the corpse. In fact, it is not that simple. After burning the corpse several times, you will understand that diesel and other combustion aids are almost necessary. If you want to fully burn the corpse, if you don’t have professional equipment, it is best to watch it in front.

To use a particularly appropriate metaphor, when burning paper for the ancestors, if you don’t turn it from time to time, although the burning flame is very large, there will still be a lot of paper rolled up in the fire and not fully burned. And it takes a certain amount of time for them to burn out completely.

Imagine burning 80 kilograms of paper piled together, it will also take a lot of time.

The same principle applies to dissolving with a solution. If the body is not cut into pieces, the solution will also dissolve from the outside to the inside. After the outer layer of the flesh reacts with the solution, the properties of the outermost layer of the solution will naturally change. Whether it is acid or alkali, it is equivalent to being partially neutralized. Therefore, if you want the solvent to dissolve quickly, it is best to have the solvent be able to...right.

At this time, another requirement is inferred, that is, it is best to dissolve the body during the day, or at least in a good light. Otherwise, these acids and alkalis will splash on the body and cause pain for two or three months.

And in the case of this broken factory, if the body is dissolve at night, the lights must be turned on, which is unsafe and easy to be discovered.

Therefore, dissolving the body during the day seems particularly reasonable.

However, imagining that there will be no traces after the body is dissolves is another fantasy.

Jiang Yuan walked around the open space in the factory and waved to call people over.

"The place where the waste liquid is dumped." Jiang Yuan pointed.

The acid that can dissolve corpses can cause extremely serious corrosion to the ground, and normal people can see it at a glance.

Two on-site inspectors immediately came on stage, put up yellow signs, and started to shoot.

Jiang Yuan was observing the corroded ground.

This is a huge disadvantage of corpse-dissolving water.

To solve the problem of waste liquid dumping. The waste acid must be neutralized, but this requirement is higher. On the one hand, the operation is more complicated and dangerous. On the other hand, hundreds of kilograms of acid may require hundreds of kilograms of alkali to neutralize, and the raw materials must be doubled.

Furthermore, accurate neutralization is basically impossible. The accuracy requirements are too high. But if it cannot be accurately neutralized, how to deal with the remaining acid or alkali?

The better solution Jiang Yuan could think of was to bring excess lye to neutralize the acid, and then carry the remaining lye bottles home.

"Look for where this pipe leads. Start from the dumped position and dig all the way there. Dig 20 meters first and take a look." Jiang Yuan now spoke very loudly.

Of course, after digging, it is normal to dig a little longer.

Xiao Si listened in front of him and immediately went to make arrangements.

Zhang Jigu, who was in handcuffs, shrank his neck when he heard this. He was also a person who often went in and out of the detention center. After listening to Jiang Yuan's order and looking at the concentration of the police around him, he silently recited Amitabha, feeling that the people in the Duanzhang group were going to be in bad luck. .

The police are quite scary when they take it seriously.

"Here. They should have burned the plastic buckets." Jiang Yuan took a few steps and pointed to another location.

It has to be said that without Zhang Jigu's report, it would be difficult for the police to independently investigate the case here. Most of the traces can have other explanations, including traces of pickling. There are traces of pickling in the old building of the factory. That is not Very reasonable?

Although now it seems that pickling is more similar to dumping, but this requires professional trace inspection to judge, and ordinary policemen are not sure.

Others, such as the traces of burning plastic barrels, etc., do not even need to be explained. In such an old factory where homeless people come and go, it is normal for someone to light a fire to keep warm.

However, if this factory is regarded as a crime scene, various trace detection methods will be used, and there are many traces in this factory.

Especially with Jiang Yuan’s inspection level, it is even easier:

"There may be blood stains here. Check it and call a police dog over."

"Here, the marks on the tool should be that someone was squatting here out of boredom and playing with a knife. He caught them and came back to compare them."

"Change the surveillance nearby."

Jiang Yuan turned around and said to Cui Qishan: "It's basically certain that there was a murder. But there is no body."

In ordinary cases, a homicide investigation will not be opened without a body. In other words, the first step in a murder investigation is to at least find the body.

However, since Jiang Yuan said there was a murder, Cui Qishan and others naturally agreed.

Cui Qishan followed the murder case and thought quickly, saying: "Zhang Jigu knows a drug dealer's younger brother, nicknamed Duanzhang. This is easy to handle. If you ask someone, you will know who is above him. Catch him and interrogate him. This case cannot be hidden. of."

"Okay." Jiang Yuan nodded in agreement.

Catch first if you have one, and DNA if you don’t have it, this is now the mainstream model.

Several people continued to search and survey the factory area.

After a while, news came from the city:

"Dumbhand has been missing for several months. Legend has it that he was killed." Cui Qishan took the call and said helplessly to Jiang Yuan: "The few younger brothers who were hanging out with him also ran away."