There were no signs of breaking into the room, and guardrails were installed on the balcony and windows. This person should have entered the room with a key.
The four members of the special case team stared at the criminal police captain. The captain's eyes were a little evasive, and there was a trace of panic in his eyes.
Hua Long said: How did we get in? Who holds the key?
The criminal police captain said: I...I have never been here.
Bao Zhan said: We only need to do a small experiment to prove your innocence. I hope you will cooperate.
Bao Zhan took out a portable fingerprint scanner from the toolbox. When the police surveyed the scene, they mostly used two fingerprint extraction techniques: powder and spray. They sprinkled fine powder such as aluminum powder and titanium dioxide powder on the fingerprint and brushed it with a small brush.
You can often see this scene on TV; on rough surfaces such as bricks and rocks, you have to use chemical spray to extract fingerprints. The spray usually contains iodine pentafluoride or ruthenium tetroxide.
Fingerprint scanning technology is a scientific and technological achievement in recent years. Covert front agents and central guards have micro-scanners. When they shake hands with strangers, they can extract the fingerprints of the other party. It only takes a few minutes to connect to the terminal database to judge.
the identity of the other party.
Bao Zhan first extracted the fingerprints on the cup, and then compared them with the fingerprints of the criminal police captain. The whole process was photographed and recorded by Su Mei. The criminal police captain was very calm. The comparison results showed that the fingerprints on the cup did not belong to the criminal police captain, but were from another person.
.
Bao Zhan said sorry, and the criminal police captain expressed his understanding. Bao Zhan took out a cotton swab and collected a sample of the water in the cup.
Professor Liang said: The landlord may have extra keys.
The special case team and the criminal police captain knocked on the door of the landlord's house opposite.
The door opened, and the landlord was a wretched-looking old man, bald, about fifty years old. During the conversation, his eyes always glanced at the beautiful Su Mei. The landlord claimed that his wife had passed away and that he had a fourteen-year-old daughter.
His son did not return from school. The criminal police captain went straight to the point and asked him if he had any extra keys. The landlord said that he still had one more. Before the two policewomen moved in, the house was rented to a group of pyramid schemes. Later, the local police station and
The Industrial and Commercial Bureau banned it and issued a few extra keys at that time.
The landlord complained: Those people still owe me one month's rent. Can the government help me get the rent?
Professor Liang asked: Did you go to the room opposite last night?
The landlord stared and said: How could I do that?
Bao Zhan asked: What does that thing refer to?
The landlord took out a key from the drawer under the TV and handed it to the detective captain. He muttered, "I haven't done anything, it has nothing to do with me."
Bao Zhan then asked: What have you never done?
The landlord was angry. He raised his voice and said: Am I a bad person? You are interrogating me. Who doesn't know that the two girls across the door were killed and their buttocks were naked? The security guards downstairs know it. You actually doubt me? I
They are fifty-one years old, and their rent has not been paid in full. They also have water, electricity and property management fees. You have to pay them to me. I am unlucky.
At this time, the landlord's son came back from school. He was a pale boy wearing a school uniform and looking listless.
Professor Liang pointed to the criminal police captain and said to the landlord: It's not easy to get rent. This is also the leader of the police station. You go to the Municipal Public Security Bureau tomorrow and he will give you the rent. However, we need to collect information about you.
The fingerprint needs your cooperation.
The landlord agreed immediately. Bao Zhan took out the fingerprint scanner and collected the landlord's fingerprints. Professor Liang coughed and looked at the landlord's son out of the corner of his eye. Bao Zhan understood and stepped forward to collect the landlord's son's fingerprints. This look on his face
The pale junior high school boy said nothing and seemed reluctant.
The special case team returned to the room of the two female police officers and immediately conducted a fingerprint comparison. The result was disappointing. The fingerprints on the cup did not belong to the landlord, nor did they belong to the landlord's son.
This result confused everyone. Who else could use the key to enter and exit this room?
The special case team planned to go to the monitoring room of the community to take a look. The community has six floors and there is no elevator. Hualong was carrying Professor Liang on his back and Bao Zhan was carrying the wheelchair. A group of people came down from upstairs. Several aunts in the community saw
They were talking in low voices. Bao Zhan and the criminal police captain were both wearing police uniforms. A few aunts mustered up the courage to come over. They reported a situation:
There's a ghost in this building!
After the incident, residents in the community knew about the incident. The murder of the two policewomen quickly spread the news. In the process of spreading, people on the streets added their own imaginations and speculations, and eventually spread rumors, forming such a story.
One theory: they were strangled to death by ghosts!
The aunts in the community swear that this building is not clean and people often cry in the middle of the night. Voice-activated lights are installed in the corridors. Every night at one or two o'clock, the lights will light up in sequence from the fifth floor to the first floor, and then from the first floor to the first floor.
When we reached the fifth floor, the lights turned on one after another, and this was repeated several times. However, the strange thing was that no one went up or down the stairs.
The security guard in the monitoring room also confirmed this strange thing. He pulled up the video because the camera monitored the building from a distance. In addition, at one or two o'clock at night, the light was very dark and the entrance and exit could not be seen in the video.
All you can see is that the lights in the corridor turn on, turn off, turn on again, then turn off... The windows in the corridor are very short. If someone goes up or down the stairs, they will definitely be able to see it from the surveillance camera. However, no one walks by.
The criminal police captain wrote down the phone number of the city bureau's duty room and told the security guard that if something strange like this happens again, just call this number and there will be police on duty 24 hours a day.
The special case team and the criminal police captain returned to the Pujiang City Public Security Bureau. The director had a serious look on his face. There were many police officers gathered in the conference room, and the atmosphere was very serious. The director said that Xiao Sun's grandmother heard the bad news and died of a heart attack. The girl
She was from a rural area. Her parents and grandmother worked hard to raise her, but she was killed...
Director Pujiang's eyes turned red, and the other police officers stood up. Each of them submitted a handwritten document, which described his activities during the two days of the weekend and his impressions of his two colleagues, Sun Qiruo and Li Wanting.
Professor Liang understood that these police officers wanted to investigate themselves first, and at the same time expressed their determination to solve the case as soon as possible.
Director Pujiang said that all police officers, including the director, obey the command of the special case team, and all cases will make way for this case. The murderer must be caught as soon as possible to comfort the souls of the deceased.
Professor Liang looked at everyone and said: Sun Qiruo and Li Wanting are not only colleagues of yours, but also colleagues of our special case team. All police officers in the world are one family.
Next, Professor Liang made a detailed division of labor:
First, focus on investigating the people who can enter the room of the two female police officers, such as computer repairmen, food delivery people, and gas delivery people. A detailed list will be made and the criminal police captain will be responsible. The room where the two female police officers live is vacant, and
A carpet search should also be done in the storage room, and the residents upstairs and downstairs should be visited.
two.
Hua Long led a team of policemen to carefully investigate the riverside where the body was found, especially underwater, and sent divers into the water to check.
Third, Su Mei was responsible for checking the computers of the two policewomen to see if there was anything suspicious, and printing out the chat records and Internet browsing records.
Fourth, Bao Zhan and technicians re-examined the physical evidence such as "underwear", "water cup", "stockings" and "hair" and extracted DNA.
Director Pujiang asked, "Do you need me to do anything?"
Professor Liang said, you ask the traffic police to look for the homeless man. He is the first witness and may be able to provide some clues. Also, ask the pre-trial experts in your bureau to re-interview the citizens who were playing mahjong.
The transcript should be more detailed.
Everyone took responsibility and took action one after another. Soon, various clues and information were gathered together.
Bao Zhan reported the test results to Professor Liang. The results showed that lotion and semen were extracted from the stockings. Then Bao Zhan said something incredible: the cup on the table was not filled with water.
Professor Liang asked: What is that?
Bao Zhan replied: Urine.
After testing, it was found that the liquid in the cup was the same as the liquid extracted from the toilet. This is something that is difficult to understand. If the murderer returned to the room at night, why would he put water from the toilet into the cup?
The criminal police captain submitted a list of all the people who had been to the residence of the two female police officers within three months before the incident. It included: toilet cleaners, postmen, decoration workers, food delivery workers, and broadband maintenance personnel.
...This time, the criminal police captain did not forget to write his name on the list.
Su Mei checked the credit card consumption records and bank account information of the two policewomen and found no abnormalities. She just felt that the savings and salaries of the two policewomen could not be linked. Although they were not spending lavishly, they frequently shopped and spent more than they should have.
Salary range. There was nothing suspicious about the browsing history and chat history on the computer. In a hidden folder, Su Mei found many photos of the two policewomen, including photo albums and travel photos.
The graduation group photo looks very intimate, and there is also a set of artistic photos: Sun Qiruo is wearing a cheongsam and playing the piano, looking like a beauty in ancient costume, Li Wanting is wearing a floor-length skirt, and is dressed like a lady; followed by several revealing photos, wearing various clothes
stockings, beautiful legs, and a police uniform holding a gun, as well as a frosty image holding a whip, baton, and handcuffs.
In this set of artistic photos, there are thin codes on the faces and police badges.
Professor Liang was very interested in the whip in the photo. It was a loose leather whip. The whip was not long and looked like a horse's tail. He asked the forensic doctor to identify whether the bruises on the buttocks of the two deceased people were caused by whipping, and asked Su Mei to continue the search.
Hidden information in computers.
Soon, the whip in the photo was found. Hua Long led a team of divers to find Sun Qiruo's bag in the water where the body was dumped. The bag contained a whip, handcuffs, a dog collar, and a few stones. No mobile phone and
wallet.
Everyone was busy until night. Professor Liang held a briefing on the case. A pair of leather underwear was tied to the feet of the deceased Sun Qiruo, and there were stones in the bag. The murderer probably wanted to tie stones to the feet of the deceased and sink his body at the bottom of the river.
But because the cruise ship was approaching, the murderer panicked and threw the body and bag into the water indiscriminately. The murderer probably had a car or other means of transportation. Li Wanting's body was abandoned on the street, which shows that the murderer's criminal psychology was not high and he had no time to prepare carefully.
Panicked, all I wanted to do was throw away the body. [ban^fusheng]. First posted
Everyone discussed and analyzed the order and route of dumping the bodies. When the meeting ended, it was already past midnight. The police officer on duty suddenly broke into the meeting room. He said that the security guard of Yayuan Community called and claimed that the building was haunted again.
, the lights on the first to fifth floors of the unit where the two female police officers were located were turned on in sequence, but no one could be seen going upstairs.
The call was not hung up. The security guard made the call with his own mobile phone. The three security guards boldly planned to go to the corridor to check. Professor Liang asked them to calm down and not hang up the phone. At the same time, he asked the criminal police captain and Hua Long to drive to Yalong immediately.
Garden community.
Everyone was quiet, listening attentively, and there were several security guards talking quietly on the phone and the voices coming upstairs.
The windows in the corridor were open, and the three security guards only felt the cold wind. One of the security guards said to his cell phone: I'm scared. Professor Liang said on the phone that the police will arrive soon, so there's no need to be afraid. The security guards didn't go upstairs, so they chose to go upstairs.
Waiting at the corner of the second floor, everyone was nervous and looked up at the stairs. The lights on the fifth floor turned on, and the security guard vaguely heard footsteps coming from above. After a while, the lights on the fourth floor also turned on.
The lights on the fifth floor went out, and the footsteps became clearer and clearer. However, the clearer the sounds, the creepier they became. These were clearly not human footsteps, but the sound of something rubbing against the ground and moving very slowly.
When the sound reached the third floor, the light on the second floor where the security guard was located went out.
They stayed in the darkness, shivering, not daring to cough or stamp their feet to turn on the voice-activated light. They just looked at the stairs nervously. Finally, they opened their eyes wide and saw something slowly crawling around the corner of the stairs...
The police in the duty room could not see the scene, and only heard the security guard's blood-curdling screams on the phone: Ah... ghost.