Chapter 764: Difficulty

A large factory building, damaged as if it had been bombed.

The red brick outer wall was dirty and broken, the ceiling was tattered, and the concrete pillars used for support looked okay, but were covered in graffiti, urine stains, and filth of unknown origin. The ground inside the factory was uneven, sewage flowed horizontally, and there was excrement of humans, dogs, cats, rats, birds, and insects everywhere.

On the side of the walls that were still relatively intact on the east and west sides of the factory, some bricks and stones were piled up, covered with a few plastic sheets, which was a nest that could sleep people.

Zhang Jigu, a man whose cheeks were sunken from drug use, was handcuffed, pointing to a corner, and said: "I was lying there at the time, covered with things, not daring to move."

"Which way was your head?" Meng Chengbiao followed Jiang Yuan over, asking for details along the way.

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

As the saying goes, people cannot imagine things they have never seen. If Zhang Jigu hadn't seen someone dissolving a corpse, he probably wouldn't have thought of this point.

And at the scene of identification, details are the key step to success or failure.

Zhang Jigu looked back and said: "Facing away from the door, the wind there was too strong."

Meng Chengbiao walked over, bent down, and looked for a while with his head almost sticking to the ground.

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

This also shows that this case, so far, is not worth a series of cold homicide cases.

"What did you cover yourself with?" Meng Chengbiao asked again.

Zhang Jigu thought for a while and said: "Bed sheets, clothes, and paper boxes piled on top, the kind of paper used for express delivery. Piled high, windproof. I didn't come out when sleeping."

"Then what about going to the toilet? What about peeing?" Mu Zhiyang asked.

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

"How long did you sleep here?"

"I slept inside that day."

"What specific time?"

"Just noon, it was quite cold, so I didn't get up, and then they arrived. I know one of them, nicknamed Broken Palm, the last three fingers of his left hand were chopped off by someone. A ruthless goods, so I hid and didn't move."

"How long did they dissolve the corpse?"

"A few hours."

"In a few hours, with so many paper boxes and such on you, didn't you make any noise?"

"I was wearing clothes, a down jacket. I'm not a homeless person... I quietly pushed the paper boxes away and hid behind them." Zhang Jigu became serious and added: "If you don't believe me, I'll perform it for you."

"You'll have a chance to perform in a while." Meng Chengbiao pressed the person down and continued to ask questions.

Jiang Yuan walked toward the position of corpse dissolution pointed out by Zhang Jigu.

Using chemical reagents to dissolve a corpse, ordinary people would subconsciously think that if the solvent used is suitable, the corpse will be dissolved quickly.

In fact, it won't. On the contrary, dissolving a corpse requires a certain amount of time. If the operation is smooth, it often takes a few hours to start. Sometimes, it also requires stirring or even adding reagents.

Similar cases involve burning bodies; many people think that using some fuel or pouring some diesel can cremate a body, but in fact, how could it be that simple? After burning a body a few more times, one would understand that accelerants like diesel are almost essential, and if one wants the body to be fully incinerated, without professional equipment, it is best to watch over it nearby.

To use a particularly appropriate analogy, when burning paper for ancestors, if you don't turn it over from time to time, although the flame is large, there will still be a lot of paper rolled in the fire, failing to burn fully. And to make them burn out completely, it takes a certain amount of time.

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

Using solution to dissolve is actually the same truth. If you don't cut it into pieces, the solution also dissolves from the outside to the inside, and after the outermost flesh reacts with the solution, the nature of the outermost solution naturally changes. Whether it is acid or alkali, it is equivalent to being partially neutralized, so if you want the solvent to dissolve quickly, it is best to be able to... right.

At this time, another demand is deduced, that is, it is best to dissolve the corpse during the day, at least when the light is good, otherwise, these acids and alkalis, if splashed on the body, can hurt for two or three months.

And as for the situation of this broken factory, if it is dissolving the corpse at night, you have to turn on the lights, which is not safe and easy to be discovered.

Therefore, dissolving the corpse during the day is particularly reasonable.

However, the fantasy of no traces after dissolving the corpse is another fantasy.

Jiang Yuan turned around the open space in the factory and beckoned for people to come over.

"The place where waste liquid was poured." Jiang Yuan pointed.

The acid that can dissolve a corpse has an extremely serious corrosive effect on the ground, and normal people can see it with a glance.

Two trace inspection personnel immediately took the stage, set up a yellow card, and started shooting.

Jiang Yuan was observing the corroded ground.

This is a huge disadvantage of corpse-dissolving liquid.

To solve the problem of waste liquid pouring, you have to neutralize the waste acid, but this requirement is higher. On the one hand, the operation is more complex and dangerous, and on the other hand, hundreds of jin of acid might need hundreds of jin of alkali to neutralize, and the raw materials have to be double.

Furthermore, accurate neutralization is basically impossible to achieve, and the requirement for accuracy is too high. But if accurate neutralization cannot be achieved, how to deal with the remaining acid or alkali?

The better treatment plan Jiang Yuan can think of is to bring excess alkali to neutralize the acid, and then carry the remaining alkali bottles home.

"Find out where this pipe leads. Start from the pouring position and dig all the way. Dig 20 meters first to see." Jiang Yuan is also very atmospheric now.

Of course, since they are digging, it is normal to dig a little longer.

Xiao Si listened and immediately went to arrange it.

Zhang Jigu, who was handcuffed, shrank his neck when he heard this. He is also a person who often enters and exits the detention center. Listening to Jiang Yuan's order and looking at the concentration of the police around him, he recited Amitabha, feeling that Broken Palm and his group should be unlucky.

When the police are serious, they are still quite terrifying.

"Here. They should have burned the plastic bucket." Jiang Yuan walked a few steps and pointed to another position.

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 traces can have other explanations, including acid washing traces. There are acid washing traces in the old factory building, isn't that very reasonable?

Although looking at it now, acid washing is more similar to pouring, but this requires professional trace inspection to judge, and ordinary police officers can't grasp it.

Others, such as the traces of plastic bucket burning, etc., don't even need explanation. It is very normal for a homeless person to come and go in such an old factory building, and someone to light a fire to keep warm.

However, if this factory building is treated as a crime scene, all kinds of trace detection means are used, and there are many traces in this factory building.

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

"Here, there might be bloodstains. Test it, and call a police dog over."

"Here, the tool marks, there should be someone bored squatting here playing with a knife, catch him and compare it."

"Adjust the surveillance nearby."

Jiang Yuan turned his head and said to Cui Qishan: "Basically confirmed that there is a homicide. Just no body."

For ordinary cases, homicide investigations will not be opened without a body. Or rather, the first step of a homicide investigation is at least to find the body.

However, since Jiang Yuan said there was a homicide, Cui Qishan and others naturally accepted it.

Cui Qishan thought quickly along the line of homicide and said: "Zhang Jigu knows a little brother of a drug dealer, nicknamed Broken Palm. This is also easy to handle. Ask someone and you will know who is above him. Catch him and interrogate him, this case can't be hidden."

"Can." Jiang Yuan nodded in agreement.

Catch first if there is a catch, DNA if there is no catch, is considered the mainstream mode now.

A few people continued to search and investigate in the factory area.

After a while, news from the city came:

"Broken Palm has been missing for several months, it is rumored that he was killed." Cui Qishan took the phone and said helplessly to Jiang Yuan: "The few little brothers who mixed with him also ran away." ===== CHAPTER 765 =====