Things that solve crimes

"Zhou Ming, male, 20 years old... disappeared seven years ago." Liu Jianghe read the hospital report and then checked the provincial bureau's intranet.

Because of the task force, Liu Jianghe also has the authority of the provincial department to review any case.

Xu Xia said, "I'll call and tell Liu Jianghe."

While he was on the phone, Liu Jianghe was writing notes for the doctor.

A minor operation like a humeral fracture was only performed seven years ago, so the doctor still doesn’t remember it.

Liu Jianghe was taking notes here, but Xu Xia came back very happily.

"No. 3, No. 5 found it." Xu Xia said happily.

Qin Henian was surprised, "How did you find out?"

"Mitochondrial DNA," Xu Xia pulled the two people out and whispered to Qin Henian, "Do you still remember your guess? The director personally went to the provincial capital and urged the laboratory to compare it with the one in Jincheng City."

Qin Henian suddenly realized that it was mitochondrial DNA!

Mitochondria are organelles in eukaryotic cells that have their own genome, which are collectively called the mitochondrial genome.

It is usually extracted from bone marrow, but the success rate is not high and it takes many attempts to make it possible.

In an ordinary laboratory, it may only be done twice a day. Doing this kind of DNA is very time-consuming.

next day

Task force meeting

Jiang Buyan distributed a pamphlet with victim information to everyone, opened the pamphlet himself and said, "Everyone knows the situation on the 4th and 7th. We will focus on 2, 3, and 5."

After several days of investigation, the right to speak has been given to Jiang Buyan.

Without any unnecessary words, Jiang Buyan stated the case directly, "No. 2, Zhou Ming, from Jinshi, disappeared seven years ago, factory worker, daily activity area is narrow. Factory, home, life between two points and one line, No. 5 and him The situation is similar, he is from Chongqing City, he disappeared five years ago, and he is a worker."

"No. 3, Shi Ping, from Jin City, 19 years old, disappeared 12 years ago, was a student before disappearing..."

As soon as these words came out, the conference room suddenly became noisy.

Several leaders of Jisheng City looked even more ugly. Shi Ping had been dead for the longest time, which also meant that the murderer had already started committing crimes 10 years ago.

In the past 12 years, there has been no news at all. In terms of social security, the responsibility for negligence must be fully shouldered.

If the case cannot be solved, the review at the end of the year will not be able to escape. Fortunately, the city bureau next door will also be embarrassed.

"Forensic doctor Jiang had a guess before. The deceased before the 4th were from Jinshi, and the deceased after the 4th were from Chongqing. The deceased on the 2nd, 3rd, and 5th also proved this. Next, we can focus on the 1st and 6th. The two cities are looking for..." Jiang Buyan arranged the next work.

Qin Henian listened carefully.

The work arranged by Jiang Buyan was very detailed, mainly verification. It seemed that he wanted to analyze the area where the murderer was.

In his opinion, the murderer is most likely to be in Chongqing City, because the last deceased was from Chongqing City, but this possibility is not accurate. Who can guarantee that the murderer will not abscond after killing someone.

Jiang Buyan's plan is a bit stupid, but it is also the most effective one.

Starting from deceased No. 4, the murderer began to use electric saws or chain saws to dismember the body.

If the area where the murderer is located can be found, even if the area is large, hundreds of police officers can slowly remove the person.

The meeting ended, and everyone left.

Xu Xia grabbed Qin Henian and said, "Let's talk."

Regardless of the two uninvited people, Xu Xia asked, "What do you think?"