Leng Xiaobing does not understand hacking technology, and even said that he is not particularly proficient in computers. At present, his computer skills are limited to the level of restarting directly when encountering problems.
Therefore, he did not know what Li Jie's operation represented.
But the computer expert from the technical department understood what Li Jie had just done, and saw him standing there blankly, his pupils narrowed, watching the scene happening in front of him blankly.
Soon, Leng Xiaobing noticed something unusual about the personnel in the technical department.
He did not understand computer technology, but what did he know? He saw shock and confusion on the faces of the technicians.
Obviously, 'Natsumu''s level is not as 'so-so' as he said himself, otherwise, the technicians would not show such expressions.
'This kid is a bit of a tiger.'
Leng Xiaobing touched his chin out of habit and looked at Li Jie with a strange look on his face.
After a while, Leng Xiaobing asked curiously when he saw Li Jie's hands leaving the keyboard.
"How's it going? Is there any result?"
Li Jie shook his head: "The poster was very cautious and did not leave any traces for tracking. He must be a repeat offender. I just left a back-up, so I don't know whether it will work in the future."
"However, it's best not to have any hope for a backup plan."
In fact, Li Jie already had suspicions about who the poster was, and it was probably the hacker who had a good relationship with 'Chen Yu'.
But the problem now is that 'Shen Yu' has not yet officially entered the police's sight.
Even in the previous "Xiao Huajun Arson Case", Shen Yu's figure appeared in it, but that was not enough to make the police pay attention to Shen Yu's problem.
Leng Xiaobing nodded. This is how investigating a case is. Not every path can be fruitful. If one path doesn't work, just try another.
Then, he patted Li Jie on the shoulder.
"Let's go to Xiao Huajun's house and have a look."
Xiao Huajun is obviously another clue.
…
…
…
About half an hour later, the two drove to where Xiao Huajun lived.
This is an old-fashioned tube building, very dilapidated, and most of the people living here are workers who were laid off during the wave of layoffs.
Boom!
Boom!
Arriving at the door of Xiao Huajun's house, Leng Xiaobing stepped forward and knocked on the door. After a while, there was a rustling of footsteps behind the door.
The door was very old, and when it was opened, it made a squeaking sound.
"Are you guys?"
The person who opened the door was a middle-aged woman. When she saw two strange men coming to the door, she subconsciously took a step back with a little vigilance in her eyes.
"We are the police."
As Leng Xiaobing said this, he took out his police officer ID card from his arms.
"Look for Xiao Huajun."
"He's not at home."
The middle-aged woman said nervously: "Officer, do you have any business with him?"
"take it easy."
Seeing the woman's anxious look, Leng Xiaobing smiled slightly and said in a gentle tone.
"Do you have a dog at home?"
The middle-aged woman replied subconsciously.
"yes."
Leng Xiaobing casually made up a reason.
"Some people in the community have reported that your dog does not have a license and is often left without a leash when going out for walks."
Hearing this, the middle-aged woman was obviously relieved, and then she spoke urgently.
"Our family has obtained a dog license!"
In order to convince the police officer that she was telling the truth, the woman turned around and prepared to get the dog license without saying anything.
"Come in, I'll find it for you."
The area of Xiao Huajun's home is not large. It is an old-fashioned one-bedroom-one-living structure. There is no layout at all. It is in the shape of a long strip. The front room is the kitchen, dining room and living room.
Next to the corridor between the bedroom and the dining room is the bathroom, and the innermost room is the bedroom. It was originally a large room and was then partitioned into two small rooms.
If people inside want to come out, they must pass through Xiao Huajun's bedroom.
Very flat.
The light is very poor.
There is no space for privacy.
Leng Xiaobing silently looked at the environment at Xiao Huajun's home. According to the records in the file, Xiao Huajun had psychological problems.
Living in such an environment may be very depressing.
The behavior of Xiao Huajun's mother just now shows that Xiao Huajun often runs out.
This should be a subconscious escape.
"By the way, he didn't cause any trouble, right?"
While walking, the middle-aged woman suddenly turned her head and took a cautious look at Leng Xiaobing, who looked majestic.
'The police have come to your door. Could this brat have done something bad?'
In an instant, she connected the arson case a few years ago with the police's visit.
A child is as good as his mother. If outsiders don’t know, how can Xiao Huajun’s mother still be unclear?
That case was probably committed by my own son.
She remembered clearly that that night, her son was very nervous when he came back, and he seemed to be distracted.
Later, her son was taken away as a suspect, and then, when she was at a loss, her son suddenly came back.
It is said that 'Doctor Shen' gave his son an alibi.
"No."
Leng Xiaobing said in a normal tone: "We are just making a routine visit."
"oh oh."
After confirming again that nothing was wrong, the middle-aged woman's heart finally relaxed temporarily.
While she was walking to the back room, Leng Xiaobing looked around Xiao Huajun's room carefully. The walls of the room were covered with various posters.
This old style reminds Leng Xiaobing of himself when he was young.
This is obviously a style from around 2000, not quite the style that people of Xiao Huajun’s age would like.
Several of the photos are of pet dogs. There are also two photos of dogs placed on the desk in the corner of the room, one is a full-body photo of the dog, and the other is a photo of Xiao Huajun and the dog.
Leng Xiaobing quickly took out his mobile phone and took two photos, then sent the photos to the technical department and asked them to compare them with the dog abuse video.
"This is the dog license."
At this moment, the middle-aged woman came out of the back room with the dog license.
"Hello, can I borrow the bathroom?"
Li Jie raised his hand and asked the middle-aged woman.
"sure."
"Thanks."
After saying this, Li Jie ducked into the bathroom.
Xiao Huajun is not the kind of professionally trained killer, nor does he have the corresponding knowledge reserves. He has no idea how to clean up the traces correctly.
Therefore, a lot of 'evidence' was left in this bathroom.
For example, there is dirt that does not feel clean, there is grass in the floor drain, nylon fibers often used in hiking bags and the hair of certain animals.
In the eyes of ordinary people, dirt or grass means nothing, because these things can be seen everywhere.
But in front of professional instruments, these are all evidence. The geological conditions and soil quality of each place are different. As long as the chemical composition of the soil is detected, you can roughly infer where the soil comes from.