The picture was played on the big screen, and everyone looked at it intently.

I saw a very CCTV-style subtitle appeared——

【April 2017, 1】

Immediately, a low magnetic voiceover sounded.

[At the beginning of the year, in the surveillance room of a building in JB District, a middle-aged policeman frowned.

He has watched the video in front of him three times and still found nothing.

"Freeze!"

Suddenly, he shouted softly, asking the operator to focus on the moment when the man dragging the suitcase walked out of the elevator.

Immediately, he slapped his head and flipped the scene back to the scene when the man entered the building more than a day ago.

Because at this time, the man was also dragging his suitcase.

The policeman slammed the table, pointed at the surveillance screen and snorted: "There is definitely something wrong with this kid!"

How do you identify the "problem" between two videos that don't seem to have anything special? ]

The picture freezes, and the main camera is pointed at Zhang Lin.

After receiving the prompt, Zhang Lin said loudly: "This middle-aged policeman's name is Zhang Zifei, and he is the deputy captain of the Criminal Investigation Detachment of the JB District Public Security Bureau.

As a police officer for more than 20 years, he has been rushing to the scene of murders and has had countless wonderful experiences in solving crimes.

In the past ten years, he has only handled murder cases.

Must be broken! "

Zhang Lin emphasized the last two words, which immediately aroused everyone's awe.

Especially the dark blue area on the right side of the stage, the young people sitting upright couldn't help but cheer and applaud.

Needless to say, these people are all police academy students.

Compared with ordinary viewers, they know better the value of the word "must break".

Glancing at the applauding young police elites, Zhang Lin said to himself: "In the case at hand, the woman has been missing for many days, and the only clue is that she appeared in the building.

Through investigation, the police identified the suspect.

Zhang Zifei led the police to analyze the surveillance video all night, and inferred from the suspect's movements of moving the suitcase when he left that there was a huge difference in the weight of the suitcase "when he came" and when he "departed".

He judged that the missing woman was most likely in the box, and she might even have been murdered!

A few weeks later, the police chased the murderer thousands of miles and caught the fleeing suspect in Yun Province.

Zhang Zifei’s judgments have all been confirmed..."

Hua Hua Hua~~~

Zhang Lin's words were interrupted, and the audience burst into warm applause.

Such a movie-like method of solving crimes really makes the audience eager to get a glimpse of the true face.

Zhang Lin did not disappoint them and said loudly: "Applause, please invite the guest speaker - Zhang Zifei."

As the words fell, a grand BGM played.

In the corridor, a figure wearing a navy blue police uniform stepped out.

As he stepped into the light, more enthusiastic applause followed.

Soon, Zhang Zifei walked onto the stage. After saluting first, he shook hands with Zhang Lin and said hello.

He has tanned skin, is of average height, but has a muscular build.

He speaks clearly, has a calm attitude, looks gentle in smile, but has a tough and sharp look in his eyes...

Zhang Zifei's appearance conforms to all ordinary people's imaginations of a veteran criminal policeman.

“从警30年,张警官荣立个人一等功1次、二等功2次、三等功9次、嘉奖5次,先后获评“全国特级优秀人民警察”“全国公安系统优秀青年卫士”“崇庆市优秀人民警察”“崇庆市十佳民警”等荣誉称号……”

Especially when Zhang Lin introduced him grandly, it confirmed the audience's imagination.

Next, Zhang Lin asked him what major cases he had solved in his life. Officer Zhang spoke calmly and casually told a story about a tortuous and bizarre serious case. The listener was easily succumbed and secretly wondered whether the old detective in front of him had ever solved the case. How many big cases.

People know that such a temperament cannot be faked.

Later in his narration, everyone knew that during Zhang Zifei's nearly 30 years as a police officer, he spent more than half of his time on the front line of murder investigation.

After serving as the deputy captain of the Jiangbei Criminal Investigation Detachment, he handed over the answer sheet of 10% detection of murder cases for consecutive years, and was nicknamed the "Homicide Detective" by his colleagues in the Criminal Police Team.

Zhang Zifei laughed off such a "super detective" setting.

"There's no such thing as a detective. We're not filming a TV series."

He said that to solve murder cases is to speak for the deceased and to look for clues even if they are complicated and intricate.

There is no magical skill in handling a case. The ability to solve a case depends on the criminal police doing a lot of work and finding clues from a large number of objects.

Zhang Zifei graduated from the Sichuan Provincial People's Police School with a major in public security in 1991. In addition to his early career as a police officer, he served as a police station officer in Zhong County. In 1998, he began his career as a criminal police officer.

From the police from the Serious Case Squadron of the Criminal Police Brigade of the Zhong County Public Security Bureau to the deputy detachment leader of the Criminal Investigation Detachment of the JB District Public Security Bureau.

Over the past 20 years, he has solved more serious cases and murders than one hand can count.

In May 2014, Jiangbei police received a report that Ma, a worker at a public rental housing construction site, was missing. The doors and windows of the dormitory where he lived were intact, and the items in the room were arranged in an orderly manner. No abnormalities were found.

After Zhang Zifei learned about the case, he immediately deployed police forces to conduct an investigation and conduct an in-depth investigation into Ma's social relations.

However, one detail caught Zhang Zifei's attention.

It turned out that Nie, who had agreed to come to the public security organ for questioning, never showed up and his mobile phone was turned off.

Is this a coincidence?

Based on the on-site visit and other investigation results, Zhang Zifei made a judgment that Ma was probably killed.

The case may need to be further investigated into a serious case of kidnapping and murder. Nie and Sun are major suspects.

Zhang Zifei led the police handling the case to do a lot of investigation work. The police on the case traveled to Sichuan and Chongqing to capture the suspect and bring him to justice.

After interrogation, the two suspects explained the crime process.

It turned out that the suspect Nie was a contractor at Ma's construction site. Due to poor management, he came up with the idea of ​​kidnapping others to extort money, and invited his classmate Sun to come to Chongqing to commit the crime together.

After visiting the construction site many times, at 5:16 on May 17 of that year, Nie and Sun sneaked into Ma's public rental house, tricked Ma into the car, and took away 2000 yuan in cash and a mobile phone from Ma. After sneaking back into Ma's room to retrieve the bank card but failing to do so, he killed Ma.

If the suspect confesses and the evidence is conclusive, is the case considered closed?

It's not over yet.

Zhang Zifei discovered that several other robberies had occurred in the area at that time, and the perpetrators were all fat and thin;

One is tall and the other is short, which coincides with the body shape of the suspect in this kidnapping and murder case. Could it be that these two people also committed the crime?

Subsequently, Zhang Zifei once again broke through the psychological defense line of the suspects in a short period of time, and the two suspects also confessed the criminal facts of their robberies in Yuzhong, Jiangbei, Liangjiang, Dazhou and other places.

Having been on the front line of criminal investigation for nearly 30 years, Zhang Zifei said that the continuous development and improvement of criminal investigation technology is indispensable to his ability to continuously solve murder cases.

With new technologies, clues that could not be found before can now be found;

Cases that could not be solved before can now be solved.

Some people even think that relying on "two legs" for police to solve crimes is outdated, and technology is the key to solving the mystery of the case.

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