Where are the fingerprints left at the site? Do you have full fingerprints on doorknobs, bedside tables, door frames, drawers, etc.? What are the features?

Where are the main blood stains? What are the characteristics of the wound? What does the lower position indicate?

Whether there is sperm in bed. Liquid residue? Are there any other items in existence?

The most important thing is to hope that Feryongbai can be successfully rescued. If he survives, he will have the most powerful witnesses, and the case will be solved just around the corner.

Thinking of this, Zhao Xiangwan became radiant, and his heart ignited a raging fighting spirit. was pondering his next move, Gao Guangqiang, Ai Hui, Zhu Kang, and Huang Yuande walked in with a stack of information.

As soon as the four of them entered the room, they began to shout heat, drinking tea, dragging chairs, sitting down and blowing fans, and when they looked up and saw the roses blooming in the center of the desk, their eyes lit up: "Yo, who bought such a beautiful flower?" ”

Liu Liangju pointed at Ji Zhao: "He gave it to Xiang Wan." ”

Gao Guangqiang was surprised: "Alas, Ji Zhao is so sensible? "Ji Zhao did seem introverted and dull at first, but now he is more and more flexible and has more and more fireworks.

He Mingyu glared at Zhu Feipeng: "No, it's much more sensible than some people." ”

Zhu Feipeng snorted at her table indifferently: "Didn't you cut off a rose for you?" You remember to find a bottle and put it in, this is the first time I gave you flowers, it is commemorative. ”

He Mingyu really couldn't cry or laugh: "Then I really want to thank you." ”

Zhu Feipeng was ashamed: "You're welcome, just know my goodness." ”

The colleagues laughed when they saw them bickering.

Zhao Xiangwan didn't laugh. She has always been attentive in her work, and after sorting out the three suspicious points just now, she was anxious to see the results of the investigation they brought back, so she urged: "How are you investigating?" ”

Gao Guangqiang motioned to Zhu Feipeng to call Xu Songling, and everyone was ready to have a case meeting.

Xu Songling held a meeting in the bureau today, and Gao Guangqiang was well-informed, saying that today was a team meeting, and Xu Songling would serve as the deputy director of the city bureau in the future. Next, who will be the leader of the first group of serious cases, everyone is quite curious.

Xu Songling walked into the house with a twisted and high-spirited attitude, and as soon as he entered the office, everyone applauded.

"Hello Director Xu."

"Director Xu will take office, and he will be on the rise in the future."

"Director Xu, don't leave us ......"

Xu Songling grimaced and glanced at everyone: "What are you talking about?" The majesty was still there, and the entire office suddenly shut up.

Seeing that the atmosphere suddenly became solemn, Xu Songling suddenly laughed: "Even if I become the deputy director, I will still be your leader." ”

Xu Songling's change of face really startled everyone. Hearing him admit to becoming the deputy director, he was happy again. Xu Songling is a doer who has stepped up step by step from a group of serious cases, and he never slapped his horse, Xu Songling was able to become the deputy director, which shows that the city bureau now pays more and more attention to experience and ability, rather than relationships and sycophants.

Everyone was sincerely happy for Xu Songling, and they all applauded and cheered.

In addition to Gao Guangqiang, Zhu Feipeng and several of their young people were all criminal policemen brought out by Xu Songling. The group of serious cases was formed by Xu Songling, most of whom were from professional classes, rich in theoretical knowledge and solid professional foundation, but when they came to the Public Security Bureau from university, they didn't understand anything when they first came into contact with cases. It was Xu Songling who took the young people and taught them how to interrogate, how to collect evidence, and what kind of processes and norms they have.

Now that the leaders who are also teachers and friends have been promoted, everyone is of course happy.

Xu Songling glanced at the young people in the serious case group, and his eyes were full of relief: "Don't worry, I am still in charge of the major criminal investigation case, and I am also the captain of the criminal investigation team. ”

After a pause, Xu Songling beckoned Gao Guangqiang to his side, and said with a smile: "Old Gao, after I leave the serious case group, these young people need an old comrade to take with them." You have rich experience and a calm personality, and a group of serious cases will be handed over to you in the future. ”

Gao Guangqiang came to the serious case team because he participated in the Zhou Jingrong campus poisoning case, but he didn't expect to be appointed by Xu Songling as the team leader: "Director Xu, I ...... it"

Xu Songling patted him on the shoulder: "I believe in you." ”

Gao Guangqiang has been a criminal policeman all his life, and he never thought of being an official, but he didn't expect to be the leader of the team of a serious case when he was about to retire, and he was a little flattered: "Okay, thank you for your trust." ”

Zhu Feipeng and the others all shouted: "Old Gao, Team Leader Gao, the younger brothers will listen to you in the future!" ”

Looking at the high-spirited faces, Gao Guangqiang's confidence doubled, and he arched his hand: "Then my boss Gao is here to thank you for lifting the village, and in the future, we will work together to solve more cases, solve big cases, and make great contributions!" ”

After being lively for a while, Xu Songling sat down and asked Gao Guangqiang to preside over the case meeting.

This is Gao Guangqiang's first time as a team leader, and the pressure has doubled. However, he has been a criminal policeman for so many years and has rich experience, so he quickly adjusted his mood and began to arrange the order of everyone's reports in an orderly manner.

First, Zhu Feipeng reported on the docking with the police station, and then He Mingyu narrated the process of questioning the victim.

After listening to He Mingyu's report, everyone was like Liu Liangju, and the first thing that came to mind was: Is Fei Siqin the victim, accomplice, or the main culprit?

This case was thought of simply, since there are survivors and they have seen the murderer's face, then they can directly draw a portrait and be wanted, and the murderer can be arrested. But now the survivor's confession does not match the preamble, there are too many contradictions, and the micro-expression judges that she is lying, so how can she arrest people?

Is there really a burglar?

Is it really three people?

Is it really strong, young, short-haired, and dark-skinned?

Fei Siqin's words are not credible, which makes it more difficult and even an obstacle to solve the case.

Hearing everyone's discussion, Gao Guangqiang wrote the three words "Fei Siqin" on the small blackboard, and typed a big "? "We will not draw conclusions to her for the time being, and Zhu Kang will report on the on-site investigation first. ”

Zhu Kang and Huang Yuande have been at the scene, together with the comrades of the Wufu Road Police Station, to inspect every corner of the Fei family.

Zhu Kang and the others were lying on the ground for a while, and climbed on the window frame for a while to take samples, and even the bedroom curtains, bathroom washing cups, kitchen dishes and chopsticks did not let go, and a total of multiple sets of shoe prints and fingerprints were taken.

"The results of the preliminary investigation showed that there were many people in and out of Fei's house, in addition to the family of four, there were also Fei Yongbai's students, neighbors, colleagues, etc. There are many pairs of slippers in the entrance of the Fei family, and everyone who comes in will change their shoes, excluding the shoe prints of the old slippers and the shoe prints of the ambulance personnel and the police. ”

Hearing Zhu Kang's words, Gao Guangqiang drew three more circles on the small blackboard: "The preliminary investigation results show that there are indeed three strangers who did not change their shoes and entered the room. ”

Before the photos of the scene were washed out, Zhu Kang took out the chalk and began to draw on the small blackboard while saying that although he was not good at drawing, it was still a matter of minutes to draw a footprint.

"Judging from the footprint analysis, the owners of these three groups of shoe prints are all male, and I will label them as A, B, C."

"A and B have short steps, thin footprints, irregular distances between footprints, and curved walking routes, which should be teenagers with relatively out-of-the-box personalities."

"C's footprints are large, the steps are large, the distance between the footprints is relatively even, he walks in a straight line, he should be a young man, and his personality is more calm. This person has a deep gravure on the back road, a shallow forepaw, and walks with his chest and abdomen straight, without a trace of panic. ”

When Zhao Xiangwan heard this, her eyes were shining, and the variety of criminal investigation methods made up for her lack of mind reading. It seems that Fei Siqin did not direct and act herself, there were indeed three robbers, but only one young man, and the other two were teenagers.

Juvenile? How old is it?

Zhu Kang is from a professional class, has excellent professional knowledge in criminal investigation, and is very researched in footprints, and he talks endlessly about the footprints on the scene.

"I observed that A's footprint had the following characteristics: the ball of the foot was wide and full, and the arch of the foot was relatively low. The forefoot indentation is relatively light, the arch indentation is relatively wide, the heel indentation is a bit heavy, the pressure surface is large and uniform, the edge of the footprint is obvious and complete, and the three-dimensional footprint is relatively deep, so it can be known that Juvenile A is relatively fat.

Juvenile B is different, his stride angle is relatively small, the pressure on the soles of his feet is not very uniform, the heavy pressure part is obvious, the edge of the footprints is not complete, the ups and downs are relatively high, and the pedaling marks are obvious, I judge: Juvenile B is relatively thin. ”

Zhu Kang glanced at his colleagues in the serious crime team, and his thin figure seemed to contain huge energy: "The specific data needs to be further calculated, but today I have been busy for a day of sampling, and there is a rough conclusion about this, let's discuss it internally first." ”

Xu Songling originally planned to audit, but when he heard this, he couldn't help but nod his head and praised: "Yes, Zhu Kang is very insightful in the study of footprints, and he can make a good use of this path." ”

Zhu Kang raised his head and responded loudly: "Yes!" ”

Huang Yuande stood up: "Regarding the on-site investigation, I would like to add a few more points. ”

Zhu Kang focused on footprints today, while Huang Yuande was in charge of fingerprints and other objects. Today's weather was hot, and they were afraid of affecting the scene, so they didn't even dare to open the ceiling fan, and squatted on the third floor all day, so tired that they were really sweaty and out of breath. Except for the lunch box sent by the school security office at noon, it was a rest, and the rest of the time was busy.

Zhao Xiangwan noticed that there was a circle of salt stains on their chests and backs, and once again had a new understanding of the hard work of the criminal police.

Huang Yuande has long been accustomed to this kind of work intensity. It's okay when you don't have a case, you can get to and from work on time, and if you come to a case, it's common to stay up late to work.

Huang Yuande pushed the glasses on the bridge of his nose, and he was full of anger, and he paid more attention to the details of the crime scene: "The fingerprint extraction work has basically been completed, because it still needs to be compared to determine, so there is no conclusion for the time being." However, after sorting through all the items on the site, I found a few things. ”

Gao Guangqiang nodded and said, "Okay, you say." ”

"First, the glass of the professor building of the Conservatory of Music is made of double-layer thick glass, which should be used for sound insulation. I asked the people in the security office, and they all said that because most of the teachers here have to practice the piano and sound, in order to avoid affecting the relationship between the neighbors, the sound insulation treatment was specially made when the professor building was built. At the time of the incident, it was noon, and all the windows on the south side were closed, so even if there were calls for help and fighting in the house, no one outside could hear them. ”

Oh, I see.

In order to avoid the hot air from the south direct sunlight entering the room, many families will close the south window at about 10 a.m. to ensure that the room is cool.

Zhao Xiangwan also suspected it before, it stands to reason that the gangsters entered the room and slashed the male and female hosts with knives, and the movement was definitely not ordinary, why didn't the neighbors next door be alarmed? It turned out that the building had been soundproofed.

He Mingyu asked: "Didn't the people upstairs and downstairs hear it either?" ”

Ai Hui, who was in charge of the external investigation, replied: "It is now the summer vacation, and many teachers are away from home. Mr. Li's hometown upstairs in Mr. Fei's house is a rural area in the north, and he took his family back to his hometown as soon as he was on vacation; Downstairs, Mr. Jin's family of three went out on a trip and was not at home. ”

He Mingyu asked, "What about the door?" ”

Ai Hui said: "Teacher Liu's mother is sick, the husband and wife are in the hospital with the bed, the child is studying abroad, and there is no one at home. ”

Well, what a coincidence.

Everyone urged: "Ah Huang, hurry up and say the back." ”

Huang Yuande hates people and calls him "Ah Huang" the most, because a big yellow dog raised in his hometown is called Ah Huang. But this nickname has long been familiar to the people of the serious crime team, and there is no way to resist.

In order to express his dissatisfaction, Huang Yuande deliberately sold a pass, picked up the teacup, and drank a large sip of herbal tea. It wasn't until the crowd urged him again that he slowly went back.

"The second point, the blood stains on the bed in the master bedroom are spurting, mainly concentrated on Qu Weige's side, it should be that she was cut to the major artery. As for what her wounds were, and what the fatal injuries were, we will not know until the forensic report comes out. The quilt was stained with blood and scattered palm prints, and it was preliminarily judged that it was left by Qu Weige and Fei Yongbai when they were fighting with the gangsters. Qu Weige has remnants of human tissue in his nails, which should be the skin of the gangster, and has been sent for examination and waiting for the results. ”

Zhao Xiangwan fell into deep thought. Qu Weige and Fei Yongbai woke up and came face to face with the gangsters, how could two adults, two teenagers and one adult, be injured so badly? Is there something unspeakable?

Liu Liangju, who didn't go to the scene, asked: "What are the husband and wife wearing?" What kind of quilt do you cover on such a hot day? ”

Huang Yuande gave Liu Liangju a thumbs up.

"Senior Brother Liu is discerning. According to the comrades of the security department, the ceiling fan in the center of the bedroom was turned on at that time, but it was turned off because it was necessary to protect the scene, and the ceiling fan was turned on for a long time for fear of the engine burning out.

The master bedroom has a wardrobe to the north, a queen bed in the middle, and bedside tables on either side. The bed is covered with cowhide mats, because the window is closed to isolate the hot air, and there is a big plane tree by the window, which is quite shady, and the Fei family and his wife are more particular, and they are dressed neatly when they sleep, all silk pajamas.

Mr. Qu wore beige mulberry silk short-sleeved and long pants, while Mr. Fei wore light blue silk short-sleeved and long pants. They should pay attention to their health, pillows, pillows, and small thin quilts covering their stomachs. I touched the towel quilt with gloves on, and it felt very good, with light green flowers on a white background, which was very elegant. ”

Liu Liangju snorted, "Towel quilt, you said it earlier." ”

Although the summer is hot, the older generation will tell the children to cover their stomachs and not be greedy for cold. Fei Yongbai and Qu Weige are also people who have brought two children, so they naturally know this.

Now I know that the couple is covered with a towel quilt, blowing the ceiling fan, and falling asleep. The two of them were suddenly slashed by knives, and they would definitely wake up because of the pain and fight with the gangsters, and Qu Weige's nails left human remnants.

Liu Liangju quickly reacted: "Are there any dripping blood stains at the scene?" Are there any traces of blood left by gangsters? Are there any clothing fibers? "If there is tearing and struggling, will the clothes worn by the gangsters be torn?

Huang Yuande said: "This is the third point I want to add, no clothing fibers were found at the scene, and the blood stains have been sampled and sent for testing, if it is not Fei Yongbai and Qu Weige, it must be left by gangsters." From what Zhu Kang said just now, there are two teenagers and one young man among the three ABCs, with knives in their hands, and Fei Yongbai and Qu Weige were injured first, so although they fought, they lost the upper hand. Combined with the information fed back from the hospital, Qu Weige was slashed more than a dozen times, the large blood vessel ruptured and died of excessive blood loss, the knife edge was long and deep, and I judged that the murder weapon should be the kind of machete with a relatively long blade. Fei Yongbai didn't have many wounds on his body, but he was stabbed into the chest, if it wasn't for the slight position and not hitting the heart, I am afraid that he would have died in Huangquan long ago. ”

Zhu Kang heard Huang Yuande call his name, raised his head and said: "It is possible that the murderer thought that Fei Yongbai was dead, so he did not continue to mend the knife, and Fei Yongbai saved his life because of this." ”

Huang Yuande said "um", "The murder weapon left at the scene is only the one on Fei Yongbai's chest, not the long machete that slashed Qu Weige, but the Western chef's meat cleaver, with a short handle, a pointed tip, and a slightly thicker blade. We went to the kitchen to inspect and saw that the Fei family had a complete set of imported Western chef knives, and the meat cleaver was missing, which should be made of local materials. ”

Zhu Feipeng immediately asked: "Are there fingerprints left on the handle of the knife?" ”

Huang Yuande said: "Yes, it is very complete, it has been extracted, and it is ready to be further compared." ”

Zhu Feipeng immediately became excited: "Great, if you have fingerprints, you are not afraid that you will not find someone!" "Since the last time Fan Hongwei made a miraculous achievement in half a fingerprint, Zhu Feipeng has been carefully pondering fingerprints and is completely fascinated.

Huang Yuande ignored Zhu Feipeng's excitement and directly said his conclusion: "I have a feeling, I don't know if it's accurate." ”

Everyone urged together: "Ah Huang, speak quickly." ”

Huang Yuande was once again hit by the word "Ah Huang" and lost his temper, and said angrily: "Can you call me by my name?" ”

This time, even Xu Songling laughed.

After so many years, Huang Yuande is still competing with his nickname.