Xiang Yaxin, the leader of the technical squadron of the sub-bureau, was very depressed, and in the morning with Lao Kong, Xiao Chen and other technical policemen came to the fertilizer factory, although the work of digging the septic tank was done by the Xinyuan Police Station to find migrant workers, but the taste of guarding the septic tank was not pleasant, the smell was stinking, and the nausea was extreme. Unexpectedly, after taking a shower and changing into clean clothes, Liu Jianye let him out of the scene again.

Xiao Chen jumped out of the car with the survey box and couldn't help muttering: "Team Xiang, this is the fourth trip, the scene is so big, we have carefully investigated it three times, what else is there to investigate?"

Xiang Yaxin turned his head and glared at him: "Liu's place is in front, don't talk nonsense." ”

Lao Kong patted him on the shoulder: "People are now the leaders of the task force, and we will do whatever the leader tells us to do." ”

Yu Guosheng is a forensic doctor, often dealing with corpses, talking less, silently following behind the three people, secretly thinking that the victim's body is in the freezer of the funeral home, and it is certain that this is the scene of the corpse, what is the point of letting the forensic doctor also go left and right to come out of the scene?

As he was muttering, Liu Jianye, who was standing under a small tree by the river, suddenly turned around and asked, "Yaxin, can you extract and test DNA from the victim's urine?"

Xiang Yaxin was confused, and said puzzled while wearing gloves: "Liu Suo, what's the use of extracting the victim's DNA, what we want to investigate now is the suspect!"

"Can you check it out?"

"It should be possible," Xiang Yaxin subconsciously looked back at Yu Guosheng.

Yu Guosheng saw that Liu Jianye also looked at him, and hurriedly said in an affirmative tone: "Yes, because human urine will more or less bring out some dead cells of the renal sac or renal tubule, and as long as the human cells have the same and equal amount of DNA, with the current level of technology, the DNA laboratory of the Forensic Inspection and Identification Center of the Municipal Bureau can easily judge the identity of the deceased according to the urine or other residues of the deceased." ”

Time is urgent, and Liu Jianye doesn't want to go around in circles with them.

Confirming that there was DNA in the person's urine, he pointed in the direction of the septic tank and said: "You have been here in the morning, and you all know why I checked the septic tank, although I have not been able to get anything out of the septic tank, but it cannot be ruled out that the suspect originally planned to throw the victim's body into the septic tank." I just thought about it, and I don't think it's difficult to verify or rule out this possibility. ”

Xiang Yaxin asked puzzledly: "Liu Suo, how to verify this?"

Liu Jianye pointed to the direction of the septic tank again, and then pointed south along the direction of the riverbank, and then walked to the side of everyone, and analyzed: "There is no wall in the south, and there is no wall from the north bank to the river, the suspect can theoretically carry the body to the dumping site from the south or the north, but the south side is full of garbage, and the slope on the north side is relatively steep, not only is it difficult to walk, but we have not found traces such as footprints, that is to say, the suspect came from this direction!"

These have been confirmed, and it is even certain that the suspect came in from a gap in the wall that had collapsed for many years in the northeast corner of the factory, because half of the footprints were found on a brick at the beginning of the gap, and they were compared to the footprints extracted from the river.

Xiang Yaxin and the others didn't know what Liu Jianye wanted to express, Liu Jianye didn't wait for them to ask, pointed to the open space under his feet to the small tree, and said expressionlessly: "Think about it, if the suspect really plans to throw the body into the septic tank, then should he put the body down, go over and open the septic tank cover first, and then come back and carry the victim's body over and throw it into the septic tank, and then cover it?"

Lao Kong reacted and subconsciously said: "It may also be carried directly to the side of the septic tank, but the body must be put down, after all, a person only has two hands, unless the suspect has accomplices." ”

"Only one person's footprints were found at the scene, and it is unlikely that many people will commit the crime, now it depends on you, please work harder, and carefully investigate the scene again to see if you can extract the suspect's urine." ”

It is easy to detect DNA from urine, but whether or not the victim's urine can be extracted from the scene is another matter!

After all, urine is not a blood stain, and even if there is a spot on the spot, how can it be revealed?

Xiang Yaxin's head is big, Yu Guosheng also feels that this task is not one or two tricky, Liu Jianye doesn't care so much, he took out his mobile phone to look at the time, and said in an unquestionable tone: "Comrades, the scene is so big, the investigation task is not heavy, three hours should be enough, please collect more samples, I reported to the Feng Bureau, and the Feng Bureau also said hello to the Forensic Inspection and Identification Center. ”

Feng Ju knew about it, and even said hello to the Forensic Inspection and Identification Center of the Municipal Bureau, and what could he say to Yaxin, he could only promise stubbornly: "Yes, we will do our best." ”

……

At the same time, Lao Tang and Miao Haizhu are transferring records of migrants who have lived in several urban villages and communities around the fertilizer factory in the past few years at the Xinyuan Street police station. The scope of investigation has been expanded, and it is necessary to find out both locals and outsiders, and this work is none other than the two police officers of the Xinyuan Street Police Station.

But when he moved several large stacks of foreign population ledgers to the small office in the household registration room, Miao Haizhu was dumbfounded.

"Master, there is only the ID card information, occupation, rented address and contact information of the foreigner on the ledger, and the height and weight are not registered, how can we check?"

"At least have an address and contact information," the case of life in the jurisdiction is not investigated in the small task force, or it is to assist the large task force to investigate, Lao Tang's mentality is better, he moved the landline phone in front of him, looked up and said: "Call the landlord first, ask the landlord if he has an impression of their tenants, the landlord can remember the best, and contact the tenants directly if he can't remember." ”

Miao Haizhu said frustratedly: "If the tenants can't be contacted, many people often change their mobile phone numbers, especially those who come out to work." ”

"Isn't there ID card information, it's really not possible to send a letter of assistance to the police station where the household registration is located. ”

"Master, you said it lightly, look at how many people there are, call one by one, can we get in touch?"

"Haizhu, you can't get in touch, I'll arrange for me to contact you together. As soon as Bao Qingshan arrived at the door, he heard the conversation between their master and apprentice, walked into the office and said categorically: "As long as you can collect clues, as long as it is conducive to solving the case, what is it to make a few phone calls, and what is it to send a few letters of assistance, don't worry, I will send someone to help now." ”

The director attached great importance to it, Miao Haizhu was happy, and couldn't help but smile: "Thank you, Bao." ”

"Thank you, this case will not be solved for a day, and the life in the institute will not be easy for a day, that's all, I'll go and call someone for you. ”

………

PS: I recommend a friend's new book "Reborn My Second Uncle", the title of this book is very poisonous at first glance, don't give me face, go and spray to death!