Original title: Zhou Li: The forensic pioneer who let the traces "speak"

The picture shows Zhou Li extracting traces at the crime scene.
The picture shows Zhou Li repeatedly studying the extract evidence in her office.
□ Reporter Sun Lihao Yang text/photo
There is such a female police officer in the Public Security Bureau of Hanzhong City, Shaanxi Province, she is sunny and beautiful, it is difficult to associate her with the police fighting at the scene of various crimes, but it is admirable to talk about her excellent professional skills, she is Zhou Li, a female criminal police officer who fights on the front line of the case scene, and is also the leader of the criminal technology team of the Hanzhong City Public Security Bureau.
One day at the end of June 2006, Zhou Li, who was pregnant, had just returned home from work when she received an order from the unit that a female head was found in the south square of Dahekanqiao in Nanzheng County, Hanzhong City, and she immediately packed up the survey equipment and rushed to the scene. The suspects were cruel, killing people and then splitting the body, putting the heads of the deceased in plastic bags and discarding them in the middle of the square, and discarding the torsos elsewhere.
Zhou Li and her colleagues inspected the scene, looking for clues, salvaging corpses from the disgusting septic tank, in the foul smell, she kept shuttling back and forth to take photos and collect evidence, carefully recorded the scene investigation, and almost fainted at the scene under the heavy work, harsh environment and physiological reaction of pregnancy.
After everyone's unremitting efforts, it was finally locked that the owner of a ramen shop was suspected of committing a crime, but the suspect refused to confess the facts of the crime. Zhou Li and her colleagues conducted on-site re-investigations many times, and finally used chemical reagents to show the victim's blood stains on the kitchen floor and wall tiles at the scene of the crime, and in the face of the facts, the suspect confessed all his crimes.
"The social impact of this case is too great, as soon as the case occurred, people were panicked and rumors were everywhere, and at that time I couldn't care less about it, I just wanted to complete the investigation as soon as possible and provide the correct direction for the investigative police to solve the case." During the conversation, Zhou Li told the "Rule of Law Daily" reporter.
In the years of engaging in criminal technology work, Zhou Li was able to calmly complete the task in the face of all kinds of crime scenes, and proved with practical actions that the professional woman of the criminal police can also do a good job.
On the evening of August 13, 2011, a taxi was found in the ravine of Huayuan Township, Yangxian County, Hanzhong City, which had been abandoned for many days, and a female taxi driver was killed and tied her hands and feet into the trunk of the car. It was the height of summer, and the female corpse was already highly decomposed, and the corpse was overflowing.
As a trace engineer, Zhou Li resolutely overcame these harsh scene environments, was the first to open the car door, worked continuously around the swarm of flies and corpse odors, conducted investigation around the scene, did not let go of any clues, and finally found and extracted the inspection material left by the criminal suspect when committing the crime 6 days ago at the lock of the trunk of the car, and after comparative inspection, identified the criminal suspect and cracked this vicious rape and murder case in time.
In November 2013, a rape case occurred in Zhenba County, Hanzhong City, after the criminal suspect committed the crime, he violently coerced the victim to write an IOU, and then added the content of "sleeping with the victim for ten nights and settling the account" to the IOU, which became the victim woman voluntarily having a relationship with him, covering up the fact of rape.
The cunning suspect denied the crime he had committed, and because the font was similar in appearance, the investigators could not distinguish the authenticity of the IOU, let alone characterize the case. So I sent this special IOU to the Municipal Public Security Bureau for handwriting identification. In the face of the facts, the suspect had to confess guilt.
"I repeatedly copied the handwriting on the IOU, found different writing habits of the suspect and the victim, and through joint arguments with other appraisers, finally came to the conclusion that the key content of the IOU was formed by the suspect's writing, not the appraisal opinion formed by the victim's writing." Zhou Li recalled.
Whether it is a storm, a fierce heat and cold, whether it is day and night or a high mountain, wherever there is a scene, she is there. With tenacious perseverance and extraordinary courage, Zhou Li carefully inspected each scene, providing a large amount of on-site information and conclusive evidence for cracking one case after another, and providing strong evidence for the implementation of precision strikes.
With the persistent pursuit of the cause and the high responsibility for the work, Zhou Li has always fulfilled her duties and fought in the forefront. Once, when inspecting a homemade dangerous firearm, because the grass-roots police did not understand the operation technology, they could not clean up the gunpowder and gunpowder in the barrel. In the face of such dangerous guns, Zhou Li did not let other appraisers approach, she placed the gun on the dangerous gun shooting rack to test the performance of the gun, but because the gun was rough and the parts were old, the hammer resistance iron was seriously worn (the gun needed to be dismantled to find the problem). When Zhou Li hung up the hammer and prepared to shoot the experiment, the gun suddenly fired automatically, and with a loud noise, the residue of gunpowder burst out from the gap in the fire platform, and the skin of her left face and neck, which was too late to cover the protective cover, was immediately covered with black gunpowder slag, and blood flowed out instantly. In order not to affect the work of other comrades, she calmly performed a simple disinfection of the wound and then went to the hospital for treatment.
According to statistics, in recent years, she has participated in or presided over the investigation of 863 cases (times) of various major and extraordinarily serious criminal cases, directly identified the nature of the cases through on-site inspection and inspection and appraisal of 771 cases, conducted 1953 physical evidence inspections, issued 814 inspection opinions, directly identified the nature of cases through on-site inspection and inspection and appraisal of 689 cases, and directly identified 297 criminal suspects without error.
Under the leadership of Zhou Li, the forensic science and technology work of Hanzhong Public Security has made steady progress, and she has passed the review of the national trace inspection and document inspection engineers, and is a member of the "China Forensic Science and Technology Young Talent Pool". In January 2021, Zhou Li was hired by the Ministry of Public Security as a national forensic technology expert. The "e-survey mobile police system" she presided over was awarded the "Grassroots Science and Technology Innovation Excellence Award" by the Ministry of Public Security, and in 2021, Zhou Li was awarded the title of second-class heroic model of the national public security system. (Sun Lihaoyang Photo)
Source: Legal Daily