On the morning of July 16, the West Mining Branch.

"Captain, all the people involved are here. ”

"Good! What about the medical examiner's report?"

"Here it is. ”

"Very good, then, let's eliminate them one by one......"

After fighting overnight, the West Mine Detachment has completed the investigation of the relationship of the victim Lin Kai.

The meeting room of the detachment is now full of people, and all the criminal policemen who can come in the district have come, and on a blackboard, all the headshots are pasted, with their names written underneath.

Tang Ziqiang, Qiu Fang, Zhang Hu, Qin Lei, Zhang Xin, Liu Fang, Ma Linna, Zhai Hao, Cui Xiaonan, Guo Xiaochuan...... Ten people of the Lin Group, in addition to some business partners of the group, that is, friends in Lin Kai's shopping mall, six bosses.

As the richest man in Lin Kaiben, of course, he will also make friends with many leaders, but Gao Lai simply excluded all leaders.

Reason?

The leaders are not in good health, and the murderer of our case is in good health.

"Today, there are many newly recruited comrades, I am old, I don't know how to teach in the police academy now, but when I come to us, I have come into contact with the practice of detective work, so I still hope that the new comrades can learn with an open mind. In fact, our criminal police, similar to doctors, are able to increase our ability through one case after another, and this case is a rare big case, which is very valuable for learning. Our Hunbei is a small city in a big city, and there are very few valuable cases on our side, although this is called a good public security work, but there are fewer opportunities for everyone to learn. I'm old and talk a lot, so let Comrade Mulan tell you about it. ”

After Gao finished speaking, he went there, and Bai Mulan walked to the blackboard with a report.

"Ladies and gentlemen, the words of the senior team are a bit rough, but the truth is this, no matter what you learn, when it comes to practice, there will be changes, and even our detective work has always been changing, and we need to keep learning. ”

In fact, Gao Lai has a deep meaning, Hunbei City is more serious aging, the whole country is famous, this is good for public security, there are really few big cases, the old man and the old lady are at most fighting for the square dance who dances well, spray a few words, or scratch twice, the young are busy with work, or barbecue skewers to play ball, big health care or something, this is self-deprecation, but our place is still quite comfortable. The so-called big case, to put it mildly, is the case of the dead, and the case of the dead in Hunbei is like this, an area of more than 100,000 people, not necessarily one a year.

Moreover, the small cities in the big cities mentioned by Gao Lai actually refer to it in particular, that is, in terms of Hunbei, it is the absolute number one big city in the country, but as far as the construction of the police force is concerned, our criminal police have not yet become independent, and the detachments are usually scattered in various districts, which is an old-school practice, and there are almost no in today's big cities.

In developed areas, the current criminal police detachments are independent, and the detachment can have one building, that is, at a level like Gaolai, it can have its own large office. But when I thought that even the city brigade on our side would work with the city bureau, I was relieved.

The current case, a high-IQ murder in a closed room, if from the doctor's point of view, this is a rare case, and it would be a pity not to do a good job of teaching.

Bai Mulan understood her master's thoughts very well, and as soon as she finished speaking, she unfolded the report.

"The deceased was 65 years old, 185 centimeters tall and weighed 140 kilograms. The forensic report determined the time of death of the deceased, on the night of July 14, between 7 and 8 o'clock, the cause of death, who was strangled from behind by a rope and suffocated, and the cyanide found only stayed in the nasal cavity and lips...... Evidence Division...... The fingerprints at the scene were only those of the deceased and his wife Qin Lan...... Basically in line with our on-site judgment. ”

Close the report.

"Next, it's our exclusion time!"

Exclude?

Many of the note-taking detectives looked up.

"With the continuous development of science and technology, we have more and more means, especially all kinds of surveillance video, which leads to a problem, that is, what we are facing in the process of handling cases is not that there are few clues, but too many clues, of which most of them are useless. ”

Many newcomers, like Liu Xiaogang, are very serious.

"For example, this scene, a luxury apartment, has a shoe cover machine, so we have no way to get the footprints of the scene, such an important clue is lost because of scientific and technological progress. To give another example, the deceased is the owner of a large company, the business is very busy, and there are all kinds of messages on the phone and WeChat, we checked his three mobile phones and found that even if he is dead, there are constantly calls and messages coming in, which naturally cannot be used as clues.

I'm just an example, and then I'm going to rule it out. ”

Bai Mulan turned around and began to rearrange the headshots.

"Although the deceased was 65 years old, he was huge, his nutrition and medical level, and we know that he also had a fitness card, whether he went or not, don't delve into this. Judging by this body size, the murderer should not be a woman and a thin man, so there are only 4 people left......"

Tang Ziqiang, Qiu Fang, Zhai Hao, Cui Xiaonan.

"The above is based on a height of 180 centimeters and a base line of 80 kilograms, and then calculating their age, these four people are the most likely to strangle the victims. ”

On the blackboard, there are only four headshots left.

At this time, Gao Lai spoke, "That, Guo Xiaochuan come out, we have to keep an eye on it, it is estimated that the comrades of the economic department will be useful." ”

"Yes. Bai Mulan complied, and then picked up another report, "Based on last night's conversation investigation, we found that all four of them had alibi certificates. ”

Both?

Tang Ziqiang, in charge of the company's main business, on the 14th, he was in the ranch, 80 kilometers away from our city, and the surveillance video showed that his car left the ranch at about 7 o'clock in the evening on the 14th. ”

"Qiu Fang, on the night of the 14th, please ...... I went to Jinbi Bathing City in this city, and from 7 to 8 o'clock I was doing big health care, and it was the No. 83 technician who served him, and there was also surveillance video as evidence. ”

"Zhai Hao, he said that he accompanied the child to celebrate his birthday, in a hotel, we have now also confirmed with the other party. ”

Cui Xiaonan, his alibi is a little weird, he said that he had a fight with his wife, and a lot of things fell at home. When we called his wife, she didn't admit it at all...... After all, it's a matter of quarrels, and it needs to be confirmed. ”

Bai Mulan closed the report again.

"The above four people are the main suspects in the direction of our investigation at present, and these four people have alibis, but if you look closely, there are some problems, whether anyone is lying, we need further investigation. There are also some clues, for example, at around 6:30 pm on July 14, Qin Lan appeared in Fuhua Yujing and entered the victim's room with a high probability. Then there is the issue of the murder weapon...... Comrade Liu Xiaogang. ”

Liu Xiaogang originally had a great enthusiasm for learning, but now that he was asked, his back was a little damp.

"That, the outdoor goods store within two kilometers of Fuhua Yujing, as well as some brands in the mall, this ...... That's a lot. ”

Fuhua Yujing is a high-end apartment, of course, the location is also very awesome, and in such a place, large shopping malls are of course standard, businessmen are very smart, know that rich people like outdoor sports, such as a real estate tycoon likes mountaineering.

There are 22 such shops, and the comrades who went to investigate were also taken aback, but since it was an order, they carried it out. They were also smart enough to get the surveillance footage of each store.

Merchants are also very smart, as far as monitoring is concerned, at least in the cash desk, there must be, to prevent self-theft.

That's good, as Bai Mulan said, the surveillance video of these 22 houses is full of clues.

Liu Xiaogang was assigned a task to watch these monitors, but where to see it.

Liu Xiaogang talked about this situation and added, "I think that the murderer bought a rope before, that is, the murder weapon, and this possibility is not small." ”

When everyone heard this, they snickered, and Bai Mulan rolled her eyes even more.

Gao Lai spoke at this time, "Comrades, what we need in our criminal investigation work is the criminal police, not the gangsters. ”

As soon as these words came out, they caused a burst of laughter, and Liu Xiaogang was also very embarrassed.

"Be serious!" Bai Mulan suppressed the scene.

Gao Lai continued: "Actually, what Liu Xiaogang said is not impossible, but our detection work must grasp the greatest possibility. With all the clues we've gotten so far, I think we're in the right direction. ”

The police are technological, but not brainless.

Then, he nodded at Mulan.

Bai Mulan continued: "According to the current clues, taking into account all the conditions, this murderer should be someone known to the deceased, and he is physically strong, and he is very familiar with Fuhua Yujing, the above 4 suspects are the most qualified suspects we can find at present, and the problem now is that there is an alibi, and there is a murder weapon." ”

looked at Liu Xiaogang.

Liu Xiaogang didn't understand anything, "Don't worry, leave it to me, come to me, come to me, 22 stores, this is also convenient for the murderer to hide himself, I will expand the scope again, I will watch the monitoring in the morning and afternoon on the 14th, and watch it carefully." ”

It's a good determination, but, hard.

Liu Xiaogang's work after this is probably to stare at the monitoring.

"Captain!" someone shouted as they entered, "watch TV." ”

"Huh?"

Turn on the TV immediately, and the urgent news is on the air.

"The murder of the famous entrepreneur Lin Kai has made important progress today, at the time of the crime, Lin Kai's wife Qin Lan was suspected of poisoning and murder, and the police arrested ......"

"Hello everyone, I am Zhang Tiecheng of the East Railway Detachment, the people's safety, social stability ......"

Qin Lan was arrested, Zhang Tiecheng was interviewed, and when he saw this scene, Gao Lai slapped his head hard.

"Oops! this iron city...... I'm going to find Team Zhou!"

"Master. ”

"Mulan, you lead the team to continue to investigate the case, and first keep an eye on the main suspects. ”

"Yes!"