Ma Zhongyu： a criminal investigation expert who has solved more than 6,700 cases in 38 years.
CCTV News:Ma Zhongyu, the detachment leader of the Criminal Investigation Detachment of Tongliao Public Security Bureau, Inner Mongolia, is a 38-year-old policeman. Since the launch of the special campaign to eliminate evils in 2018, Ma Zhongyu has been in the front line of the town, leading his brothers to fight for several months, and successively cracked down on "3 06" Liu Moumou, "7 20" Xue Moumou, "8 25" Dong Moumou and other black-related projects, arresting 137 suspects involved and collecting more than 400 clues.
And these outstanding achievements are very common to him. During his 38 years as a policeman, he has investigated more than 6,700 important cases, which is equivalent to solving one case every two days, and there is no wrong case, so he has become a well-deserved "criminal investigation expert".
The "technical flow" criminal police who love to study.
Being a criminal policeman has been Ma Zhongyu’s dream since he was a teenager, so he did not hesitate to choose Inner Mongolia Police Academy when he applied for the university. After graduation, he was assigned to the Criminal Investigation Detachment of Tongliao Public Security Bureau, Inner Mongolia, and he became a criminal policeman who served justice and eliminated violence.
When he first arrived at the criminal police team, he followed the experienced masters in the team, not afraid of hardship and fatigue, learning bit by bit and accumulating bit by bit. This hard work made the masters willing to take him with them when they went to the police. Soon, he emerged with excellent on-site investigation ability and meticulous on-site reasoning logic.
In 1984, Ma Zhongyu took the lead in the investigation. From then on, he got into the habit of taking case notes. Today, hundreds of Yu Ben case notes are piled up in his desk and bookcase, each of which is filled with every case introduction, case analysis, trace material evidence at the crime scene, description of criminals and summary thinking. He also wrote 21 papers and published them in journals at all levels. "These notes are like a database, which has helped me solve one major and difficult case after another."
Ma Zhongyu and colleagues study physical evidence.
On July 23, 1989, major thefts occurred in the production and operation department of Huolinhe mining area and the oil company of Huolinguole city successively. Fingerprints were extracted from the scene of the two cases and identified as the same person. On June 5, 1990, investigators discovered other criminal facts of Renguomoumou in Lubei Town, Zhalute Banner, and extracted his ten-finger fingerprints. Because the suspect destroyed all the fingerprint lines of his ten fingers in order to cover up his criminal facts, it could not be identified normally. Ma Zhongyu studied and analyzed the fingerprints of the scene and the fingerprints destroyed by the suspect, found out the regular characteristics of the change characteristics, and explained the differences by theoretical science, thus reaching the same conclusion. In the face of the evidence, the criminal suspect who has been tried for four months, but refused to explain the facts of the crime because he thought his fingerprints were destroyed and could not be identified, finally bowed his head. After closing the case, he wrote the paper "Polar Analysis of Fingerprint Identification", which provided valuable detection experience for colleagues.
On January 21, 1995, in the case of Lu’s murder in Shebotu Town, Kezuozhong Banner, Ma Zhongyu explored the "Experimental Study on Using 502 Adhesive to Show Handprints" during the detection, and used this technology to extract several fingerprints of the suspect from the scene, and directly compared the cracked cases.
His experience and technology also played an important role in the detection work of his peers. In December 1992, a murder case occurred in Kulun Banner, Tongliao City. The victim was strangled to death by the criminal suspect. In order to find more traces of criminal suspects, the criminal investigation technicians in Hure Banner successfully extracted a broken fingerprint by using the technical method of "Fingerprint Extraction from Human Skin with Filter Paper 502" summarized by Ma Zhongyu in practice. After visiting and touching the suspects, they found the same and quickly cracked the case.
Vow to solve the case for the people to the end
When people look at public security, the key is to solve the case. "I can’t solve the case, and there is a sense of guilt for the people. I am worried and sleepless." In Ma Zhongyu’s eyes, as long as there are cases related to ordinary people, there is no distinction between major cases and minor cases.
In order to solve the case as soon as possible, he didn’t sleep for 72 hours, visited and investigated in the countryside for 48 days, and ate and lived in the office for 192 days … … "Doing criminal investigation is not bitter, but it is also fun." Ma Zhongyu thinks that solving a case is like walking a maze. If you go one way and find there is no way, you will come back and take another one, and so on until you find the right one.
Ma Zhongyu is at work
On November 16, 1995, Zhao Moumou, an accountant of the Planning Commission of Holingol City, Tongliao City, and his niece were killed in their father’s home, which triggered various speculations among the masses. Ma Zhongyu rushed to the scene of the crime overnight, unable to attend to the pain of motion sickness and rest, and immediately went into exploration work. Repeatedly, upstairs and downstairs, I didn’t find any valuable clues.
"People can’t fly, it’s impossible!" Ma Zhong squatted on the ground and repeatedly explored. If it didn’t work once, it would come again for the second and third time … … At the end of the day, I finally found a three-dimensional footprint outdoors and a looming dust footprint indoors. After analysis, the two footprints were identified as the same, and then the suspect’s footprint was determined, and the detection of the case made important progress.
Subsequently, Ma Zhongyu found that Li’s footprint was the same as the scene after a comprehensive arrangement and key examination, and was further identified as the same type of footprint by comparison. Later, Ma Zhongyu put forward a series of measures in time, such as finding blood clothes, conducting blood type tests, comparing the remnants (buttons) on the scene, and tracking them. Finally, he found the coat that Li was wearing when he committed the crime in the laundry, and successfully tested the blood samples on the clothes and the missing buttons, which made the case cracked in one fell swoop.
On June 17th, 2016, 10 days after Wang, a nurse in a hospital in Tongliao, lost contact with his family, his body was found by the police under the dam of Liu Yin Road in the development zone. The golden period of murder detection has been missed, and the case detection is deadlocked. In this race against time, Ma Zhongyu is on the verge of death. As a core member of the "June 17" project headquarters, Ma Zhongyu stayed up all night, and went to Yu Sheng for cross-provincial investigation, and visited the whole city, and got a lot of evidence clues. On December 23, the task force received a work request from Liaoning police to verify Xu, a suspect in the robbery and murder case. Because the characteristics of the suspect are highly consistent with the investigation clues and criminal means analysis of the task force, Ma Zhongyu is keenly aware that this may be a breakthrough in the "6 17" case. He immediately organized personnel to investigate around Xu, and extracted the material evidence information of Xu’s family and conducted key tests in time. After 192 days of investigation and fighting, finally, Xu confessed the criminal facts of killing Wang and three other homicide cases in Tongliao City on the evening of June 17, 2016. So far, the "6 17" series of rape, robbery and murder cases have been successfully solved.
In the eyes of leaders and colleagues, as long as there is Ma Zhongyu, there is no case that cannot be taken. This kind of confidence comes from Ma Zhongyu’s grasp, combing and analysis of the case and his relentless pursuit to find out the truth. It also comes from the fact that he has people in his heart. It is precisely because of this deep affection of "taking the hearts of the people as the heart" that he has made extraordinary achievements in ordinary posts. He has been appraised and hired by the Ministry of Public Security and the Public Security Department of the Autonomous Region as a senior engineer of national physical evidence appraisal, a criminal technical expert of public security in the Autonomous Region, and a special investigator. He has won the National "Top 100 Interpol" and won the first class merit and the second class merit twice. (Source: Ministry of Public Security)