The two of them walked side by side, Lu Chuan's brows furrowed tightly, and he looked back from time to time at the Qingsong Physical Examination Center, which was getting further and further away, hidden in the cold wind.
After walking about a few dozen meters, Lu Chuan stopped.
"Master, something is wrong. This woman... I still feel something is wrong."
This time, Liu Guodong looked at Lu Chuan seriously.
As a criminal police officer, intuition has never been the standard for handling cases, let alone the basis for conviction.
However, the intuition of criminal police officers is different from that of ordinary people. After dealing with various criminals for many years, they seem to have a kind of vigilance against crime accumulated through experience.
Although Lu Chuan has not been a police officer for a long time, he has been engaged in spot investigation and trace inspection work for a long time. He has little front-line experience, but he has been exposed to many cases.
In the past six months, the criminal investigation detachment's homicide detection rate has been 100%, and Lu Chuan has played an important role.
It makes sense to have this kind of intuition, or experience.
not to mention……
Liu Guodong, Lu Chuan and Zhang Hui had made an appointment long ago to call Zhang Hui as soon as the two people here finished their investigation.
However, the two of them had not taken the initiative to call Zhang Hui more than ten minutes after they came out of Qingsong Physical Examination Center.
Lu Chuan felt that there was something wrong with this woman, and Liu Guodong was murmuring in his heart.
However, the two men's questioning of Wang Manli just now was relatively thorough.
Wang Manli did not show any abnormality during the conversation.
The contact with Goldman Sachs is proved by WeChat chat records, and the fingerprints on the electric car are also proved by surveillance video.
Wang Manli was perfectly cleared of suspicion in the Goldman Sachs disappearance case.
It was like...the answers had been prepared for the arrival of Liu Guodong and Lu Chuan in advance.
"Xiao Lu, can you tell me the reason?"
Lu Chuan's frown deepened: "I took leave last night to attend my cousin's engagement party, and I saw this woman in the parking garage of Haizhou International Hotel."
"Have you met her?"
Liu Guodong was slightly surprised: "Didn't she recognize you just now?"
"We just met once in the elevator. She probably doesn't remember it." Lu Chuan shook his head: "At that time, I felt that this woman was a bit familiar. I felt like I had seen her before somewhere."
"Today...this feeling is even stronger."
"Check it?"
Lu Chuan nodded: "Well, check it out. Yesterday, this Wang Manli drove a silver-gray BMW car."
"A nurse at a physical examination center, so rich?"
"Also, she went to the seventh floor of Haizhou International Hotel yesterday, which is the guest room department."
"I attended the engagement party for just over two hours. When I was driving back to the underground garage, I noticed that Wang Manli's car had already driven away."
The meaning of Lu Chuan's words was very clear.
Since Wang Manli works locally in Haizhou, it is unlikely that she will stay in a hotel at night.
Even if you stay in a hotel, you won’t stay for just two hours.
So, what did she do at Haizhou International Hotel yesterday?
Liu Guodong nodded: "I asked my friends from the economic investigation department to help check Wang Manli's assets and bank statements."
When it comes to checking economic details, economic investigation is more professional and convenient than criminal investigation.
Of course, this does not mean that criminal investigation cannot be investigated, but more procedures must be followed.
For example, only by issuing an official letter to the bank can you check the specific information of the depositor.
However, due to the special nature of the work, the economic investigation side has super authority.
The financial situation of ordinary people is transparent to them.
As for whether anyone can help, that's even more trivial.
The fingerprint identification that Lu Chuan did for them last time helped them a lot.
I bought 400,000 yuan worth of equipment, so this trivial matter is not a big deal.
Since the two of them had decided to investigate this Wang Manli, there was no need to wait in the cold wind.
After calling Zhang Hui, who was still busy there, Lu Chuan directly paid for a taxi back to the Criminal Investigation Detachment.
Yang Sen and Lao Bai hadn't come back yet, so Liu Guodong contacted his friends in the economic investigation department.
But Lu Chuan has nothing to do now.
The building of the Criminal Investigation Detachment was unusually deserted. Many internal staff were dragged away to the scene. There were only two or three big cats and kittens left in the building.
Lu Chuan, who had nothing to do, began to scan for fingerprints.
During this period, because all the energy of the current investigation team was devoted to the case of Song Kun's murder, some normal work was delayed.
A lot of work has been piled up, and there are more than a dozen cases that require fingerprint identification and analysis alone.
Taking advantage of this gap, Lu Chuan happened to clean up some work at hand.
This week, there have been a total of twelve cases of fingerprint identification and analysis.
There were four robberies, three thefts, and some old cases. Recently, new discoveries have been made, and there are fingerprints that need to be compared.
Lu Chuan, who has intermediate fingerprint identification and analysis skills, can be described as handy most of the time when dealing with these relatively simple cases recently.
Although the fingerprints collected by the police station and criminal police brigade below are of average quality, after Lu Chuan's pre-processing, they can basically be matched successfully.
It is rare that there is no matching fingerprint, because it is very likely that there is no fingerprint of the target person in the fingerprint database.
It's hard for a clever woman to make a meal without rice. This is something that even the gods can't do anything about.
Currently, there is no particularly fixed, systematic and unified procedure for fingerprint identification and analysis.
In the earliest days, ministries and commissions and major provincial departments established corresponding fingerprint identification institutions in order to play the role of fingerprint identification in solving crimes.
It also standardizes and unifies the classification of ten-finger fingerprints, which is the basis for all current fingerprint identification analyses.
However, in the investigation of specific cases, the shortcomings of too simple and rough classification of ten-finger fingerprints gradually emerged.
On this basis, various localities have developed technologies, integrated classification, and formed some unique fingerprint analysis methods.
Up to now, fingerprint identification analysis can be roughly divided into two categories: single-finger fingerprint analysis and multiple-finger fingerprint analysis.
Among them, single-finger fingerprint analysis is the most widely used.
Among all single-finger fingerprint analyses, the Qingdao-style single-finger fingerprint analysis method and the CQ city single-finger fingerprint analysis method are the most famous.
It is also a template analysis method used to teach skills in universities.
Each of these two methods has its own advantages and disadvantages.
Among them, the Qingdao-style single fingerprint analysis method divides the two basic types of fingerprint buckets into 28 major categories and 68 sub-categories.
The analysis is carried out with the help of specially prescribed "analysis rules".
The so-called "analytical gauge" is engraved with a circle with a diameter of five millimeters, called the analytical circle, and two straight lines that intersect to form an angle of 80 degrees are engraved with the gauge line.
Use "analysis rules" to delineate fingerprints, mark feature points, and then perform data calculations and analysis.
In the Chongqing-style single-finger fingerprint analysis method, fingerprints are divided into three major categories: bow, skip, and bucket, and 24 subcategories. The analytical formula is represented by pictographic symbols.
For example, the analysis of bucket-shaped fingerprints shows that this type of fingerprint is composed of rings, spirals, curved lines and other lines, and is divided into 11 categories according to the structure of the central lines.
The diameter of the central annular line does not exceed 4 mm, which is called a circular ring and is represented by the symbol "0".
If the diameter of the central ring line exceeds 4 mm, it is called a long line ring and is represented by the symbol "①".
There is one or more spiral lines in the center that rotate in a clockwise direction, and the diameter at both ends does not exceed 4 mm. It is called a circular spiral, represented by the symbol "9".
Lu Chuan's intermediate fingerprint identification and analysis skills are the master of these two single-finger fingerprint analysis methods.
Therefore, most of the fingerprint identification requests reported by grassroots police stations and criminal police brigade are not a problem in Lu Chuan.
Except for a few exceptions, the clarity of the fingerprints itself was too rubbish and looked like a mess. Lu Chuan had to spend a very long time and a lot of energy to get it done. The other fingerprint comparisons could be done in just ten minutes. Half an hour is almost enough.
Near evening, when Yang Sen and Lao Bai came back, Lu Chuan was already comparing the last set of fingerprints.
Liu Guodong rushed back from the economic investigation, and the investigation on Wang Manli also came to fruition.
