Whenever a murder case occurs, Chang Jian quickly leads the investigation technicians to the crime scene at the first time to direct and coordinate the detection work. Under his leadership, the three brigades have made great achievements in solving the murders, and successively solved the murders of female students in Nong 'an County "1.17"1.24 "and industrial college students" 5.24 "on 20 10. It is the duty of every criminal policeman and Chang Jian's greatest wish to detect influential major criminal cases. He often said: "Whether influential major cases and malignant difficult cases can be detected in a short time will affect the people's impression of public security organs to a certain extent." Therefore, he always put the detection of major cases in an important position, and led the police of the task force to solve the "5· 10/0" case in Jiutai City in 2008, the "9.29" bank robbery and murder case in 2009, the "12.29" kidnapping and hostage-taking case in Green Park District, and the "5,000" case in Jiutai City. It can be said that every cracked case has devoted a lot of his efforts.
On February 28, 2009 19, Changjian Brigade received a report from a middle-aged man, saying that he had just received a kidnapping and blackmail message, saying that his son who was studying in college had been kidnapped, and if he did not pay the ransom, he would wait to collect his son's body. After the case occurred, the headquarters of the task force of the Municipal Bureau handed over the main investigation tasks of the case to the task force of the three brigades.
In the face of pressure, Chang Jian showed the calmness and composure of a commander. He led the investigators into the investigation work immediately, comprehensively applied his accumulated investigation experience for many years, patiently searched for clues to solve the case, braved the snow and went to Hebei, Inner Mongolia and other places for five days and five nights, and finally locked in three suspects and arrested them all. "It is my first duty to personally catch the criminal suspect and crack the case!" This sentence is not only Chang Jian's mantra, but also the best interpretation of his personality with clear love and hate.
On May 5, 2005, the police received a report that a vicious homicide occurred in Building 203, Binhe Community, Erdao District. Two women were stabbed several times before being strangled, and the 6-year-old girl was stuffed into the toilet by the murderer and drowned alive. This case is very cruel, which has aroused great public indignation and attracted the attention of relevant provincial and municipal leaders. Gao, deputy mayor and director of the Municipal Public Security Bureau, visited the scene and demanded that a task force be set up immediately, and said: The case has not been solved and the troops will never be withdrawn.
According to the deployment, the task of detecting this case falls on all the investigators of the third brigade of the Interpol detachment. Chang Jian personally led the police of the task force to carry out investigations in an all-round way. In the investigation, according to the clues, Chang Jian decisively linked the case with a murder and robbery case in the Green Park on May 1 2005, and successfully locked the suspect Liu Fanjun. On May 1 1, Chang Jian led the police of the task force to drive to Jilin City to arrest Liu. On May 13, when the suspect Liu Fanjun and two other suspects appeared in an Internet cafe, Chang Jian was the first to rush up and hug Liu, but Liu Fanjun took a dagger out of his pocket and viciously stabbed Chang Jian's heart. After Chang Jian dodged this knife, he knocked Liu to the ground with superb grasping skills.
Subsequently, Chang Jian personally organized the trial. In the face of a large amount of evidence, the suspect Liu Fanjun and other three suspects confessed all the criminal facts of the robbery and murder cases in Erdao District "5.05" and Lvyuan District "5.0 1". Later, the three men also confessed the crime of robbing and killing a college student in Shenyang in 2003.
Dan Xin can be a public servant, and the iron and blood silently casts the police soul. On Chang Jian, party member, a producer of * * *, showed infinite loyalty to the party and the people, selfless dedication of a criminal police to the public security cause, fearless and invincible qualities of a commander and combatant fighting against criminal crimes. He showed the noble feelings of a political and legal cadre with practical actions.