The next morning, Chen Yi and the seven of them left Yangcheng.

There was no big scene, only a business car, and it was Qin Fei who was driving.

This time it is an investigation, not an inspector, but the Suicheng police must understand that there is not much difference between the two, if the research team encounters any serious mistakes, Chen Yi, as the team leader, is very likely to turn the investigation into an inspector on the spot.

Let's not mention that Chen Yi's position is there, even if it can't be handled, it can be done with a phone call.

Does the provincial hall listen to Suicheng or Chen Yi? Obvious.

Therefore, the Suicheng police said that they were not nervous, it was false.

After receiving the news from the provincial department, the municipal bureau immediately launched public security patrols throughout the city, intensified the prevention and control of illegal crimes, and left a good impression on the research team as much as possible, saving Chen Yi from giving a negative evaluation after returning to the provincial department.

Chen Yi naturally understands this after experiencing the Jiaocheng case, so he asked Wei Jianfeng yesterday if he had informed the cities for investigation.

Now that it has been told, many things lose their meaning and there is no need to waste time.

Three hours later, the vehicle got off the highway and had reached the boundary of Suicheng.

As imagined, Suicheng is indeed sparsely populated, with a wide field of vision, and few buildings to obstruct it.

Housing prices are low and consumption is low, so it may be a good place to retire.

However, after all, it is a third-tier city, and "suitable for retirement" has a derogatory connotation, indicating that the economic development is slow or even regressive, and the pace of life is very slow.

Chen Yi was looking at Zheng Congliang's information, not preparing for an investigation, but just getting to know and understand it in advance.

Zheng Congliang, the captain of the criminal investigation detachment of the Suicheng City Bureau and the second-level police inspector, is almost 50 years old, close to the age of leaving the post, and the general detachment leader is over 35 years old and under 50 years old.

From a police officer to a criminal police officer to a detachment leader, Zheng Congliang's resume is not bad, but to achieve this position at the age of forty, it is more about qualifications.

If you have the ability, it's okay.

To put it mildly, in the short man, look for someone who is relatively tall.

"Team Chen, this Zheng Congliang is twenty years older than you." It was Fu Guoyong who spoke.

Now the leadership team is fully younger, and the detachment leader, who is almost 50 years old, has basically bid farewell to his promotion, and this is the end of his life.

This is from the point of view of the provincial department, from the point of view of ordinary people, the detachment leader of a city...... It's a big official.

Chen Yi: "With more than 20 years as a police officer, he has participated in and led the team to crack 1,600 criminal cases of various kinds, has recovered long-lost children for 50 families, cracked five fraud gangs across seven cities, and has been awarded four second-class merits, six third-class merits, and nine personal awards. ”

"A very experienced old detective, worthy of the respect of all of us, do you know what I mean?"

It is true that Suicheng has a low rate of solving cases, but Zheng Congliang's contribution cannot be denied.

Doesn't he want to solve the case? Doesn't he want to catch the suspect? Doesn't he want to give justice to the victims?

He also thought, but he just had more than enough heart and not enough power.

Several people: "Yes, Team Chen." ”

Zheng Congliang has no special outstanding points, but more than 90 percent of the police officers in the country are people like him, who are conscientious and persevering, conscientiously do their work well, strive to perform their duties, and make unremitting efforts to crack down on lawlessness and crime.

The probability of big and important cases happening is very small, there are not so many complex cases, every city needs Zheng Congliang, the more such policemen, the better.

The vehicle drove into the city, the speed was very fast, Suicheng was not congested at all, and compared with the congested Yangcheng, it was simply a paradise.

As the distance between the two sides got closer and closer, Zheng Congliang's figure appeared in the crowd, and the leader of the city bureau stood in front of him.

The car stopped at the door, and everyone got out of the car.

"Captain Chen, welcome."

Two middle-aged men stepped forward to shake hands, one was the deputy bureau in charge of criminal investigation and the other was the main bureau.

The provincial research team came to Suicheng, of course the main bureau had to show up, as for the follow-up things, he would not care, the research team was aimed at criminal investigation this time, and someone would be responsible for following up.

After a moment of greetings, everyone entered the city bureau, it was noon, the dinner had already been arranged, Chen Yi proposed to try the food in the bureau, so everyone ate in the canteen.

After the meal, there was a meeting, Chen Yi sat in the first seat, and below were Deputy Director Wang Shengrong and Detachment Leader Zheng Congliang and others.

One of the purposes of the research work is to seek truth from facts, to implement the behavior of deceiving superiors and subordinates and falsely reporting results, and the materials have been prepared and sent to Chen Yi.

Old documents, can't be fake.

"You go ahead, I'll take a look."

Chen Yi flipped through the documents and motioned to the spokesman of the Suicheng detachment to speak, which was a necessary procedure.

Wang Shengrong gestured to Zheng Congliang, who began to read the manuscript.

"Hello colleagues in the research team, good team Chen, I am Zheng Congliang, captain of the criminal investigation detachment of Suicheng City Bureau, and I am honored to discuss issues related to criminal investigation work with you through research today, and now I will focus on the following aspects."

……

"First of all, I would like to talk about the importance of criminal investigation work......"

……

"Secondly, I would like to highlight the challenges facing the criminal investigation work at this stage......"

……

"At the same time, I think the construction of the criminal investigation force is very important, especially for us in Suicheng......"

……

"Finally, I would like to make a few suggestions, hoping that the provincial department can consider it......"

The manuscript is very long, Chen Yi listened slowly, although it was a programmed speech, but the content was not programmed, obviously Zheng Congliang had prepared carefully for this.

"Thank you."

The applause rang out, and Chen Yi put down the document and looked at Zheng Congliang.

A very calm man, his eyes seem to have experienced countless baptisms of wind and rain, deep and bright, nearly fifty years old, and the years have left a furrow on his face.

Zheng Congliang is not a burly person, but he has a sense of strength all over his body.

The police uniform on his body is already a little old.

"Zheng Zhi has achieved outstanding results in his work over the years, has made great contributions to the social security of Suicheng, and is a model and example for all our police.

Everyone looked at Zheng Congliang, who was obviously stunned for a moment, but he didn't expect that the overly young provincial police supervisor would praise himself first and affirm himself.

Chen Yi, of course, has heard that the label is a master of criminal investigation, a gifted type, and several serial murder cases that are extremely difficult to solve have been solved by his hands, and the suspect has been brought to justice.

Two months ago, in order to save people, he almost died.

The rising star, Zheng Congliang himself began to feel more emotional, and now it is the world of young people.

He also knows that there must be someone behind Chen Yi, otherwise he wouldn't have risen so quickly, but his ability to solve those cases is admirable.

"Team Xie Chen, thank you to the provincial department, where the responsibilities are, this is what I should do."

Zheng Congliang lowered his posture and spoke modestly.

People who are almost 50 years old have a respectful attitude towards a young person, and the youthfulness of the leadership team is very intuitive.

Regardless of the position, Chen Yi is two levels higher than him in terms of police rank.

Chen Yi closed the document in front of him and said, "Let's put other things aside for the time being, Zheng Zhi, take the file and detailed investigation report of last year's 622 poison murder case." ”

622 Poison Murder?

The Suicheng Criminal Investigation Detachment looked at each other, but it was not surprising that the provincial department said that the research team would guide the investigation of the backlog of cases, and they had already received the news.

The 622 poisoning case occurred most recently and had the greatest impact, after all, the victim died in front of everyone in a public place.

This case attracted widespread attention from all walks of life in Suicheng last year, and after the incident, the videos on the Internet were messy and said everything, and they kept in the comment area on the official accounts of the Suicheng police, which put a lot of pressure on the city bureau.

Unfortunately, it has not been detected so far.

"Okay, Team Chen, wait a minute." Zheng Congliang turned his head to look at a person, "Xiao Li, bring it all according to Team Chen's requirements, including video files." ”

The video file refers to the surveillance video, of course, the victim was poisoned on the bus, and the video in the car is one of the most important clues, which has been watched by the investigators many times.

"Yes, Team Zheng." The police officer known as Xiao Li got up and left quickly.

Wang Shengrong spoke: "Team Chen, do you want to focus on investigating this case?" ”

Chen Yi: "Have you been busy on the team lately?" ”

Wang Shengrong looked at Zheng Congliang, and the latter spoke: "There are several new cases in the investigation team that are following up, if you focus on investigating 622, you need to give up one temporarily, or transfer people from the sub-bureau." ”

"What's the new case...... Chen Yi thought for a moment and said, "Don't miss the golden period, take care of the new case first." ”

Detachments and sub-bureau brigades are very busy, the same in every city, and it is impossible to keep an eye on a case all the time.

It is a common occurrence that an old case is not solved, and a new case arises, and the police know that unless a new case can be solved in a short period of time, this is very difficult to do.

Even Chen Yi himself, during the period when he was the head of the detachment, he had times when he was overstretched, and he needed to make trade-offs and judge the focus.

Wang Shengrong: "What does Team Chen mean?" ”

Chen Yi: "Counting Zheng Zhi, plus two front-line police officers who are very familiar with this case, it is best to be responsible for a comprehensive visit, and we will comb this case again." ”

To investigate old cases, you don't need too many people, and you can advance the case by finding the points that you have overlooked.

Zheng Congliang had no opinion, and his eyes were on Wang Shengrong.

Wang Shengrong saw that Chen Yi was a resolute person, and he didn't like nonsense and didn't go through official procedures, so he happily agreed: "Okay, we will do whatever Team Chen says, and fully cooperate, then...... I'm not going to disturb your work? ”

Chen Yi didn't chase away customers, but he was very discerning.

If he is not involved in the front-line investigation of the case, it is useless for him to stay.

Chen Yi nodded: "Wang Ju, let's talk back." ”

Wang Shengrong left the conference room.

The dossier was quickly taken and put in front of Chen Yi, Chen Yi turned the first page, and pushed the rest to Qin Fei and them, everyone looked at it and understood the whole picture of the dossier as quickly as possible.

The conference room fell silent, except for the sound of pages turning.

Zheng Congliang waved his hand and asked the investigation team below to work on the case, leaving behind two police officers who had continued to follow up the case, including that Xiao Li.

I'm not young, I look like I'm in my thirties.

As time passed, Chen Yi and others learned more and more about the 622 case, which was investigated in a wide area, covering almost the entire Suicheng University, including the relatives of the victim Gao Xiaofei.

As long as it is related, it is within the scope of the investigation.

The direction of this case is actually very simple, who put poison in the vitamins that Gao Xiaofei was carrying.

There are actually not many people who can do this, so Gao Xiaofei's close people, regardless of gender, age and age, are the key targets of the investigation.

"Poor background."

Zhuge Cong whispered.

Gao Xiaofei's family of three, including her younger brother, was buried in the fire nine years ago, and the family was burned to the ground, and Gao Xiaofei was almost burned to death.

At that time, she was in her second year of junior high school.

For so many years, it was the only grandmother who raised her for her to go to school.

However, when Gao Xiaofei came to her senior year and was about to graduate, something like this happened.

It is conceivable that Gao Xiaofei's grandmother must be very devastated, and I don't know what is happening now, it is very dangerous for older people to experience extreme grief again.

Nine years ago, he lost his son, daughter-in-law and grandson, and last year he lost his granddaughter, and he became completely alone, which is difficult for ordinary people to accept.

Chen Yi closed the file, according to the investigation of the Suicheng Criminal Investigation Detachment, there are a total of four people who are more suspected in this case.

The first one is Gao Xiaofei's college roommate, and there is a bit of a contradiction between the two.

The second is Gao Xiaofei's cousin, after a visit, it was determined that the relationship between the two was not good, and according to relatives, they often quarreled.

The third is Gao Xiaofei's boyfriend, and it is customary to check the partner first.

The fourth is a classmate who has been chasing Gao Xiaofei for two years, and there is a possibility of love and hate.

These four people, during the investigation, did not find evidence, not even pointing clues, and did not find any abnormalities during the interrogation, if the murderer is really among the four, then the psychological quality is still very strong.

Trivalent arsenic is strictly controlled by the state, and the criminal investigation detachment also investigated pharmacies in the city where the ingredient can be purchased, and found no people or suspicious persons who had dealings with Gao Xiaofei.

Having said that, although trivalent arsenic (arsenic) is difficult to buy, it does not mean that it cannot be bought, and if you want to find it, it should be available in relatively backward rural areas.

The control of poison cannot be comprehensive, otherwise there would not be so many people who commit suicide by taking drugs.

As long as it exists, it can be obtained, unless it's a rare element.

"Look at the surveillance." Chen Yi spoke.

The big screen lights up, and the real-time monitoring inside the bus appears in everyone's sight.

On the weekend, there are still a lot of people in the car, and Gao Xiaofei's position is just under the surveillance, and there is no blind spot in the field of vision.

She sat by the window, wearing long sleeves in the summer, listening to music while watching the traffic outside.

The reason why she wore long sleeves was because Gao Xiaofei had burns on her arm, and she had been scarred for nine years.

After the bus ran for twenty minutes, Gao Xiaofei naturally took out a bottle of vitamin C from her bag, poured out two pills and put them in her mouth, and her movements were skillful.

She eats a lot.

Three minutes later, Gao Xiaofei reacted, covered her stomach and head, looked pained, and then fell to the ground uncontrollably.

Abdominal pain, dizziness, nausea, and numbness of the whole body are consistent with the symptoms of trivalent arsenic poisoning.

The car fell into chaos, and the people around hurriedly stepped forward to check and dialed the emergency number, until the ambulance arrived, Gao Xiaofei was sent off the bus, and the picture stopped.

No one approached Gao Xiaofei before the poisoning, and the poison did come from the bottle of vitamins.

It is clear that this was a deliberate murder, and the poison was put in the bottle in advance.

After reading it, Chen Yi lowered his head and flipped through the file again and found a page about vitamins.

Why does Gao Xiaofei take vitamins? Because she also had a poisoning experience, which was chronic iron poisoning.

One of the treatments for chronic iron poisoning is vitamin C.

Chronic iron poisoning does not kill people, and the cause of poisoning is generally overdose of iron supplementation drugs or long-term high-iron diet, and the clinical reaction is skin pigmentation, hepatosplenomegaly, etc.

"Chronic Iron Poisoning ......"

This is a suspicious point, and Chen Yi lists it as one of the clues to focus on in his mind.

There is also a key character, the fourth of the four suspects: Zhao Jianhui.

He chased Gao Xiaofei for two years, and finally the other party threw himself into the arms of others.

Before Gao Xiaofei got on the bus, he was with this Zhao Jianhui and had a seafood buffet, and he was the last acquaintance to see Gao Xiaofei.

It is precisely because of this that Zhao Jianhui was investigated the most times, and in the end he even had strong resistance to the police, and he was forcibly summoned to the city bureau for uncooperative behavior.

The interrogation was inconclusive, and surveillance in the cafeteria did not detect any unusual behavior.

The case has been shelved until now.

In the past year, the Suicheng Criminal Investigation Detachment has never given up investigation, and as long as new clues appear, they will go all out.

Chen Yi habitually knocked on the table, then took out a cigarette and lit it.

This case is indeed not easy to investigate, and it is no wonder that Zheng Congliang is helpless, which is understandable.

At this moment, everyone's eyes are on him.

After taking two puffs of cigarette, Chen Yi turned his head slightly to look at Zhuge Cong and the others, and the talents in the provincial department didn't know what the level was.

"Look at what I'm doing, tell me."

Cheng Hanjun looked at Zhuge Cong, and Zhuge Cong looked at Fu Guoyong, no one wanted to be the first to be the first to emerge.

In the end, the three of them turned their eyes to Xia Lan.

Xia Lan was stunned for a moment, and said speechlessly: "Do you think too highly of me?" ”

She is Chen Yi's civilian assistant, no matter how she investigates the case, at most she interjects when she encounters a flash of inspiration.

There is no prototype in the case, please do not sit in the opposite seat

(End of chapter)