The conference room was already full of all the police officers in charge of the case in Canglin Public Security at this time.

After a few days of investigation, they investigated all the details related to the case again, especially the deceased's mistress, Chen Wei.

"According to the conditions provided by Team Leader Li, we have counted the whole village, and there are 15 villagers who are more than 1.75 meters tall who meet the conditions, including Chen Wei, the lover of the deceased, a total of 16 people.

Among them, excluding those who are not suspected of committing crimes and who have not committed crimes, there are 14 people.

Chen Wei was suspicious at the beginning, and his words could not be fully believed, but at present, we have not found direct evidence of his crime, well, in fact, there is no indirect evidence, through the review of their chat records, there is no contradiction between him and the deceased, the relationship between the two is stable, and it is unlikely that he will kill someone.

There was also a suspect before, Qiao Liangfu, because his height was only 1.7 meters, which could not meet the restrictions given by Li Xiang, so his suspicion was temporarily ruled out.

This re-investigation, there is a person who appears in our sight, this person is named Qiao Baoshan, is the son of Qiao Laohan, 34 years old this year, unemployed, likes to play cards, often with Qiao Liangfu, playing cards in Qin Qinglian's commissary. ”

"Old man Qiao's son? Before the investigation, why didn't he go? ”

Seeing Li Xiang ask, Ding Youqiang explained: "When we investigated him before, he had an alibi and no time to commit the crime. ”

"Then why are you listing him again?"

"Because Qiao Laohan is dead, his alibi is provided by Qiao Laohan, and now that Qiao Laohan is dead, he has no one to provide."

When the police investigated Qiao Baoshan, Qiao Laohan provided an alibi, and then Qiao Laohan died, and the police subconsciously ignored this person.

Now, according to Li Xiang's request, he has re-sorted out the people in his village, and then he has been mentioned again.

Because Qiao Laohan has such a relationship with this case, as Qiao Laohan's son, and meets several conditions mentioned by Li Xiangmen, the suspicion gradually becomes bigger, so he enters the police's sight.

Li Xiang nodded, understanding what was going on, so he continued to ask, "How is this person's financial situation?" ”

"Like Qiao Liangfu, he doesn't have much money, likes to play cards, and he also owes a lot of debt, so he is a little better than Qiao Liangfu."

Ding Youqiang's preliminary preparations are very sufficient, and he has a very clear grasp of Qiao Baoshan's personal situation, basically he can answer whatever Li wants to ask.

"At present, this person is the most suspicious, I suspect that Qiao Laohan knew that his son killed Qin Qinglian and gave his son a false testimony, but he couldn't bear it, so he risked the taboo and went to guard Qin Qinglian's spirit."

As soon as Li Xiang made contact with each other, he speculated a very reasonable hypothesis, which was also approved by the task force.

"I think so, otherwise, there is no reason for Qiao Laohan to have to guard Qin Qinglian's spirit, maybe out of guilt, or atonement!"

"Make bold assumptions, carefully verify, and immediately start the investigation of Qiao Baoshan!"

After the meeting, the task force immediately arranged for the police to go to Qiao Laohan's home to investigate, and Ding Youqiang even applied for a search warrant, preparing to conduct a detailed search of Qiao Laohan's home.

"Captain Ding, I'll go to Sanhe Village with you again."

Li Xiang's case has been closed, and the work is relatively relaxed.

And the case in Sanhe Village has reached a critical time, and he also wants to follow up and see what is going on in this case.

"That's great."

Ding Youqiang knew that Li Xiang had real skills, he could personally participate, and the progress of solving the case was definitely improved.

Four police cars in a row, one after the other, went to Sanhe Village, and finally stopped at the door of Qiao Laohan's house.

The task force and Qiao Baoshan were in contact, so he was also at home at this time, standing at the door of the house with his eldest mother, waiting for the police to come.

After seeing Ding Youqiang get out of the car, he hurriedly took out a pack of Chinese from his pocket and stuffed it into Team D's pocket: "Team Ding, smoke, smoke." ”

"What are you doing, take it back, I don't smoke."

Ding Youqiang blocked it, avoiding the smoke, and at the same time his face darkened.

The leaders of the provincial department were watching at the scene, and Qiao Baoshan's action made him look like he usually accepted benefits from the people.

Qiao Baoshan saw that Team Ding didn't accept it, and he was a little confused, so he finally stuffed it back into his pocket and said: "Team Ding, this matter really has nothing to do with me, I really removed the yellow eel with my father that night, he can testify to me, can't because he is dead, the confession we recorded before will be invalidated, right?" ”

"It's not invalid, this is a homicide after all, in line with the principle of solving the murder case, our police will attach great importance to it, don't wronged a good person, and will never let go of a bad person, don't worry, as long as you don't do it, you cooperate with the police investigation, and it will be fine."

"That's, that's, I'll cooperate well."

Li Xiang began to observe Qiao Baoshan's every move after getting out of the car, with the continuous accumulation of experience in handling cases, he also has some experience in the psychology of criminals, no normal person can be treated with a normal heart after killing, and the murderers who can really kill people without blinking an eye are still a minority, and these people can no longer be called normal people, but psychopaths, once they commit a crime, it will be difficult to stop again.

Qiao Baoshan is obviously not such a ruthless person, in the face of the police investigation, from the action of handing out cigarettes at the beginning, it can be seen that he is a little weak-hearted.

But this alone does not mean that the person is a criminal suspect.

Evidence is also needed.

After entering the house, Ding Youqiang began to ask, "You said that you went to catch yellow eels with your father that night?" ”

"Yes."

"What shoes did you wear that day?"

If you catch a yellow eel, then his shoes must have a lot of mud, just look at the soles and uppers of his shoes to know if he is lying.

Qiao Baoshan was stunned, he didn't expect the police to ask so carefully, so he had to follow the policeman's words: "The shoes were washed off, they were too dirty, they were all mud, and I washed them off the next day." ”

"Oh? Is it? So what did you wear that day? That dress must be dirty too, right? ”

"Yes, yes, the white undershirt I was wearing was also dirty, so I washed it off with my shoes."

When Ding Youqiang heard the white undershirt, he knew that Qiao Baoshan was lying, so he continued to ask, "Is it?" But how did I listen to Qiao Liangfu that when you played cards that day, you were wearing black clothes? ”

"It was too hot, so I came back and took a shower, so I changed my clothes."

"Anyway, I'm going to touch the yellow eel, and I don't want to take a bath when I come back?"

"Touching the yellow eel temporarily, my father said that he wanted to go, so I thought about accompanying him."

In the question and answer, Qiao Baoshan thought for more and more time, especially Ding Youqiang pointed out some details, if he wants to round the past, he must conceive.

Li wanted to see this, and in his heart he was basically sure that it was this person, but it was still that sentence, and evidence was needed.

The law is about evidence, and if there is no evidence, even if you know that he is the murderer, you can't punish him.

At this time, I heard Ding Youqiang mention that Qiao Baoshan was wearing black clothes that day, so he interjected: "That black dress should still be there, right?" ”

Hearing Li Xiang's words, Qiao Baoshan glanced at him, saw that he was a little young, so he didn't take it seriously, and replied casually: "Yes, it's still there." ”

"It's good to be here, please show it to us."

"What's so nice about a rotten dress~"

"What nonsense, Team Leader Li will take it if you ask you to take it."

Ding Youqiang saw that Qiao Baoshan was a little disrespectful to Li Xiang, and immediately scolded, Qiao Baoshan was more afraid of him, the captain of the criminal police, and when he saw that he was angry, he didn't dare to say anything more, so he turned his head and went back to the house to get his clothes.

Seeing Qiao Baoshan go back to get the clothes, Ding Youqiang asked in a low voice, "Is there a problem with this dress?" ”

"Well, I saw the blood stains at the scene, according to the analysis of the range of blood spatter, I think a small part of the blood was splashed on his clothes, did you bring luminol reagent?"

Luminol is a yellowish crystal at room temperature, and it is often combined with hydroxides to identify blood.

The principle is as follows: the iron in hemoglobin breaks down hydroxides into water and monooxygen, which is then oxidized with luminol to form blue-white fluorescence.

This solution is now widely used in forensic methods, and its verification effect is very sensitive, and it can detect only one part per million of blood.

"Brought it."

Ding Youqiang understood what Li Xiang meant, so he waved his hand and called a technical policeman to ask for a bottle of luminol reagent spray.

Generally, this is more convenient, as long as you suspect that there is blood in any place, spray it, and if it glows, it proves that there are blood stains in this place.

But it's not a panacea.

Luminol also fluoresces in the presence of iron, ferrous alloys, horseradish, or certain bleaching agents, and can also detect animal blood, so to determine whether it is human blood, it also needs to be combined with DNA testing.

Fortunately, after the luminol reagent reacts with the blood, it will not adversely affect the blood, and subsequent DNA testing can still be carried out.

"Here, it's this dress, and it's been washed."

"It's okay to wash, let's go, let's go into the house."

Ding Youqiang took the black short sleeves handed by Qiao Baoshan and looked at them carefully.

Since the color of the clothes was originally black, and after the clothes were washed, he didn't see anything.

So he put his clothes in the house, took out a luminol reagent spray, and sprayed it on his clothes.

Soon, the clothes were sprayed with a chemical solvent and suddenly emitted a bright blue glow.

Even in the daytime, you can clearly see the approximate range of bloodstains.

"Emma, the Bodhisattva has appeared, and my clothes are shining."

Qiao Baoshan, who saw this phenomenon for the first time, was a little surprised, and thought that the Bodhisattva had appeared.

"This solution is called luminol reagent, and when it touches the blood, it will fluoresce blue-white."

The people in the village were ignorant and mistook science for a miracle, so Li Xiang explained.

Hearing Li Xiang's words, Qiao Baoshan's expression changed, and he suddenly said in disbelief: "Impossible, I have washed my clothes, and you have framed me." ”

"Luminol is highly sensitive to blood, and even if the blood is washed by you, there will still be some invisible blood left on your clothes, and even if the blood is diluted to one part per million, it will still be detected."

The blue light lasts for about half a minute, and this time is enough for the technical police brought by Ding Youqiang to take photos and collect evidence.

Qiao Baoshan heard Li Xiang's words and collapsed to the ground all of a sudden.

Seeing this situation, the eldest lady hurriedly ran over, hugged Qiao Baoshan and asked with concern: "Son, what's wrong with you?" Did the fall hurt? ”

"Mother, I'm sorry for you, I killed Qin Qinglian."

"What? Why are you so stupid, why are you going to kill her! When the eldest mother heard her son say this, it was like a thunderbolt in the clear sky, and she was stunned on the spot.

In her impression, although her son is unlearned and idle, he is idle all day long, but he is also good at gambling and does not dare to kill chickens, let alone kill?

"I don't want to, I just want to steal two money to spend flowers, she suddenly appeared, and said that she wanted to call the police to arrest me, I can't help it, I can't help it."

The mother and son hugged their heads and cried, when the real mother and son were in deep love, if they let people who didn't know look at this scene, they didn't know if the police had done something angry to them.

"Qiao Baoshan, come back to the bureau with us to cooperate with the investigation."

Now that the truth has come out, Ding Youqiang can finally breathe a sigh of relief so that he can give an explanation to the public.

"Son, your father is gone, you have to leave too, how will I live in the future!"

Looking at the police car in the distance, the eldest lady knelt at the door, looked up to the sky and sighed, crying loudly.

Qiao Baoshan's interrogation work went very smoothly, and at the same time, he also explained where he lost his crime tools.

The police of the special case team searched for half an hour in the position he designated, and then found the fruit knife he used to commit the crime.

And this knife is from Qin Qinglian's family.

In fact, the cause of the matter is very simple, Qiao Baoshan and Qiao Liangfu and their group play cards in Qin Qinglian's commissary all the year round, and the economy is relatively poor, and it is his old father who supports him all the year round, and his hands have not been very rich.

Because I often saw Qin Qinglian selling things to collect money, the money was put in the drawer, so I had the idea of stealing money.

In order not to be detected by the police, he even wore gloves.

On the night of the incident, he played cards with people in the commissary, and after losing the money, he didn't go home, and after giving up his seat, he watched the excitement there, and when it was almost over, he hid in the toilet in advance, and waited until Qin Qinglian closed the door, and then came out to steal things.

Who knows, when he stole half of it, Qin Qinglian suddenly came out, and when she saw that it was him, she yelled to take him to the police station.

Qiao Baoshan was worried that the matter would be revealed, and he was very anxious, and at this time, he happened to see a fruit knife that Qin Qinglian often cut fruits on the camp platform, so he was heartbroken, and he simply didn't do anything, picked up the fruit knife, and stabbed Qin Qinglian's body.

At that time, his brain was blank, worried that Qin Qinglian would not die with one knife, so he made up a few more knives, and a lot of blood was splashed on his face until he saw her lying on the ground and did not move, he knew that he was in trouble, so he hurriedly ran home.

(End of chapter)