While the manhunt is in progress

Chapter 599
"Gene fuzzy matching is a breakthrough in criminal investigation technology that has only been realized in recent years."

Song He glanced at the household registration information in the electronic files, and entered the names and related information in his mind and sorted out the files. In the blink of an eye, he had screened more than a dozen electronic files.

At the same time, Song He also calmly analyzed: "In this case, the murderer's biological information is extremely complete, especially the gene fragment on his Y chromosome, which can be said to be the most valuable information in this case. "

"According to the Y chromosome's characteristic of 'passing on from male to female', the Y chromosome in the genes of the suspect's brothers, father and son, uncles, nephews, cousins, and grandparents is homologous."

"More importantly, each site on the more identifiable of the two genetic markers on the Y chromosome is shared by about 5% to 20% of people."

"That is, the more sites two people can match perfectly, the more likely they have a common paternal ancestry."

"Therefore, as long as a matching Y chromosome is found, the suspect's surname and family tree can basically be determined..."

Qi Weigang on the side put his hands on his hips, and while watching Song He who efficiently sifts out information, he complained to Zhou Kai: "Is he usually so showy?"

Zhou Kai laughed: "To have this kind of experience, it seems that he regards you as his own."

Qi Weigang chuckled and grinned: "I really want to slap him, really."

Ma Xuexian, who was playing with Huya, also laughed: "He also really wants to slap you, really."

Listening to the voices of talking and laughing behind him, Song He despised everyone who spoke from the bottom of his heart, and began to screen the information with all his heart.

Thanks to the fact that the deceased was quite responsible for the work during his lifetime, and the information entered was very accurate, it was quite easy for Song He to screen, and it took only a few hours to enter the other party's work for a year into his brain.

"Xiaoxue, let's start to improve the family tree." Song He stretched his neck and came to his girlfriend.

Wu Xuerui nodded, tapped the keyboard lightly and swiftly, and the operation interface of the household registration system appeared on the computer monitor.

In an instant, Song He reported each piece of information clearly and quickly, while Wu Xuerui and Song He seamlessly entered the information into the computer for retrieval, and then Song He simultaneously summarized the information on paper.

Such a tacit cooperation immediately opened Qi Weigang's eyes, and then his eyes unconsciously swept across the companions around him.

The police officers who came from Luo Province like Qi Weigang couldn't know what his plan was, and they all smiled wryly and shook their heads, subtexting "I can't do it".

When Qi Weigang saw this, he had no choice but to give up his unrealistic thoughts, and began to think about how to develop the work after returning to Luo Province, and he was fascinated by the thought after a while.

In the blink of an eye, the time came to dusk, and the paper in Song He's hand was already filled with dozens of sheets.

When the time came to seven o'clock in the evening, Wu Xuerui finally stopped her fingers, turned off the hot computer, and stretched her back.

"You're exhausted." Song He rubbed Wu Xuerui's shoulders considerately, but was pushed away by his girlfriend who was a little shy due to the presence of everyone.

"Come on, eating too much dog food will affect your appetite for dinner." Qi Wei just stepped forward quickly, staring eagerly at the paper in Song He's hand: "Is it sifted out?"

Song He nodded, handed the paper in his hand to Qi Weigang, and said: "There are about a hundred big and small families, plus some retail investors and outsiders, it is almost two hundred."

"So in theory, as long as you screen less than 200 people, you can match the biological information of the murderer. Then you can do a specific screening, and the left and right are among the thousands of people."

"It's amazing, it's amazing!" Qi Weigang laughed, put away a stack of papers with great care, patted Song He on the shoulder and shouted for a treat.

Zhou Kai and the others helped him with the case for a day, so naturally they would not refuse, so the group headed to the restaurant in a mighty manner, and had a full meal.

The next day, Qi Weigang and his group finished their week-long study and investigation, bid farewell to Song He and others, and happily set off on their way home with a pile of case materials and relevant analysis results.

After seeing off Qi Weigang, Zhou Kai saw Song He waiting at the airport with a bitter face, and couldn't help laughing: "What? Are you scared?"

"Can you not be afraid!" Song He glanced at the time, calculated the time before Xing An got off the plane, stroked his forehead, and said, "These guys don't have fuel-efficient lamps! Qi Wei just dared to come here with the case, and Xing An and the others dared to have it." Do what you do!"

"And Brother Kai, just watch, the following cases will only be more difficult than those brought by Qi Weigang!"

Zhou Kai raised his eyebrows: "Based on what you said, why do I feel that their ways are somewhat similar to yours? What did you do when you went abroad to exchange and study together? You are a chicken thief against each other!"

Song He shouted shamelessly: "Brother Kai, you don't know that these guys are making bad news one by one, and I am the one who was killed!"

Amid the chatter and laughter, a group of police officers in police uniforms walked out of the airport pick-up area. Song He looked at the familiar figure leading him, who was not tall but had a silly smile on his face, and his heart sank: Sure enough, he is here...

In the next three weeks, none of Xing An and others exceeded Song He's expectations. Each team brought old unsolved cases that were not easy to solve, which caused him to be at a high point all the time during these 20 days. Intensive case analysis work.

And when he sent away the last batch of Wei Kai who came to study, he felt the sense of urgency gone, he didn't even wait for Wei Kai to enter the waiting hall, he danced and shouted in the parking lot at the airport gate !

Zhou Kai leaned against the car, watching Song He having fun in the parking lot, and said with a slight curl of the corner of his mouth: "Look at the oppression of the child."

Ma Xuexian also leaned against the car, but his eyes always stayed on Hu Ya, who was following Song He Sahuan: "Are you going to tell him that he has to go to the county tomorrow to deal with the backlog of cases?"

Zhou Kai laughed more happily: "How can I bear it! After all, I'm not a devil, so give him a few more minutes!"

The next day, when Zhou Kai drove to the new assistance area, Song He was sitting in the co-pilot with a sluggish face, while Huya, who Ma Xuexian specially arranged for Song He to relax, was dozing in the back, obedient and quiet.

"Brother Kai, you've been laughing all morning." Song He said suddenly, but his eyes were still dull: "Restrain yourself, don't be too explicit."

Zhou Kai grinned, glanced at Song He, and said with a smile: "This week's task is relatively heavy, we have to go to several places, you should be mentally prepared."

Song He turned his head like a puppet, with a dull expression and dull eyes: "Brother Kai, there is a word in the Chinese dictionary called fatigue, you should know it?"

"I know this word." Zhou Kai's smile still did not restrain himself: "But it's not in your dictionary? I remember that you could work for several days without taking a serious break!"

"What? It hasn't been two years, and your body is not good enough?"

"Me! A serious man!" Song He immediately cheered up when he heard the words. He glanced at the tiger teeth in the back row with his ears hanging open, gritted his teeth and said, "I don't have those unsatisfactory words in my dictionary!"

(End of this chapter)