The back hall is the same size as the front hall of the auction, about 200 square meters, and only one door can be entered.

There are several solid wood shelves inside, and there are a number of magic weapons and talisman treasures on display.

The stolen ground ladder magic weapon is placed on the fourth row of shelves next to the right hand side of the entrance.

"In addition to the guards, are there any others entering?"

Qian Zhihong looked at the two errand guards standing at the door, these two errand guards were not civilians like the errand officers of the Inspection Division.

Because they bear the heavy responsibility of guarding the magic weapon talisman, these two people are both early stage cultivators in the cultivation of Dan, and if there is a person who steals it, even if its strength is invincible, it can also shout to the police.

But both of them said that they only knew about the loss of the item.

"Du Zhutou, I am the guard of the back hall, he is Xiang Xiuneng, since the theft, only me, him and Qian Shangshu entered the back hall treasury, and no one else entered. ”

After making sure that the scene was not destroyed, Du Jing nodded and asked Qian Zhihong, "Qian Shangshu, I don't know what kind of magic weapon the stolen ground level magic weapon is?"

Qian Zhihong pondered for a moment, he wanted to wait for the auction to reveal it, but now it seems that it is really impossible, and he must truthfully provide information to Du Jing.

"It is an auxiliary magic weapon, called the stagnant sundial, this is a great experiment, it is my craftsman who portrays the understanding of time on the formation, which can achieve the effect of stagnant time, it is like a sundial, the size is three feet to see the circle......"

Du Jing was shocked in his heart, stagnant time, it seems that he really underestimated this fantasy world.

First is the invisibility charm, and then the stagnant time, which is constantly increasing the difficulty of solving the case for yourself!

"I wonder how long I can stop?"

"In an instant! Each time you must consume the spiritual power of a high-grade spirit stone before you can use it. ”

In an instant, this time is not even as good as a second, but when it is symbolized by the master, it is precious, and it can completely turn the tide of the battle in this instant.

Fortunately, it was a moment, and it was not too perverted, even if the thief used this magic weapon, it would not allow him to escape in a moment.

After learning about the stolen items, Du Jing began to survey the scene.

There is only one purpose of the scene investigation, and that is to restore the crime scene.

There are three ways to restore the crime scene, one is to extract the traces of the scene, the second is to draw the scene map and geographical location, and the third is to record the weather, temperature, humidity, wind direction, and wind level if it is outdoors, because these will cause certain damage to the scene.

As Du Jing slowly progressed, a 3D model had already been formed in Du Jing's system, and there were no other effects involved in the interior.

Therefore, what Du Jing is doing now is to extract all the traces left at the scene.

As long as the crime will leave a trace, there is no perfect crime at all!

This is what Du Jing has always firmly believed.

It's a pity that the back hall of the Ministry of Industry Yamen is not like Liang Jiu'er's home, but a floor made of bluestone bricks, although there are footprints on it, but it cannot be as clear as the dirt floor.

It is only possible to distinguish the pattern, and even the edges are extremely unclear, which is another difficulty for Du Jing's detection.

After recording these footprint patterns in the system's case file one by one, Du Jing took the well and illuminated the ground with a strong flashlight and continued to investigate.

The footprints at the scene were messy, at least five or six footprints appeared, and it was basically impossible for the footprints to solve the case.

The footprints on the bluestone ground of this yamen public hall encountered the same dilemma as in his previous life, that is, he could not play his true role at all.

It is impossible to judge more information according to the depth of the footprint, and some basic information can only be analyzed through the indentation of the pattern.

But in this world, the sole pattern is very simple, and it is impossible to judge what brand of shoes you are wearing.

Du Jing sighed helplessly, and continued to explore the footprints towards the ground with a strong flashlight.

Suddenly, he noticed a ray of sunlight shining through the cracks in the bricks and tiles of the roof on the ground.

Looking up, there was a small gap, and where the gap went vertically, there was more dust than the rest of the place, and Du Jing gently wiped the dust.

Apparently this gap is a trace of a recent pass.

Could it be that the suspect entered through the roof and then exited through the roof?

If the movement is light enough, it really won't attract the attention of the two guards outside the door.

Could it be that his investigation is in the wrong direction?

Du Jing couldn't help but be suspicious, and after looking at the footprints on the ground, he took the flashlight and walked towards the shelf where the magic weapon of the ground level was placed.

Since footprints can't play an obvious role, Du Jing doesn't plan to give up easily, he doesn't just look at people's footprints!

He also looks at handprints!

With the illumination of the flashlight, several clear fingerprints and palm prints appeared on the shelf.

However, it is still not possible to rule out whether the fingerprints belonged to the caregiver or the suspect.

As long as the fingerprints of the caregivers are excluded, the ones left behind will inevitably be the suspects.

It's a pity that these fingerprints don't appear and can't be seen clearly, which makes him stumped.

According to the previous life, the extraction of fingerprints is not a big deal, a magnetic stucco brush, a magnetic powder is enough to make the fingerprints visible, and then use tape to glue the fingerprints off to extract clearly.

However, the magnetic particle method is only suitable for non-absorbent smooth surfaces such as metal, plastic, glass, and ceramic tiles.

Obviously, this shelf is not made of the above materials, and there is no magnetic powder and magnetic stucco in his hands.

By the way, there is also a fingerprint display!

502 fingerprint fumigation is the most common fumigation technology, human fingers have sweat, and the composition of 502 is ethyl a-cyanoacrylate, which can polymerize with water, and the adhesive component in 502 allows fingerprints to be quickly formed.

But how could the 502 that could be bought everywhere before appear in this world!

There is no one here who is engaged in chemistry at all, and the road of alchemy is very smooth, and it is impossible for the possibility of practicing chemistry in alchemy.

Du Jing, who racked his brains to think about how to extract fingerprints, even consulted the system, but the system knowledge blindly prompted, "The fingerprint collection and comparison system has not been turned on, and it can be collected after it is opened." ”

At this time, the door of the warehouse in the back hall was slowly pushed open, Qin Lanyu was holding the kettle he had just bought and was steaming, he couldn't help but suck a sip of boiling water, and asked softly: "Du Zhutou, the previous questions have been completed, and a few suspects have been identified, how are you looking here?"

Steam? yes, steam!

Didn't the fumigation method originally use steam for fumigation?

Seeing Du Jing so excited, Qin Lanyu couldn't help but walk into the back hall and asked, "Du Zhutou, could it be that you have a clue?"

Du Jing shook his head, but then nodded and said, "Go buy some kelp from the nearby street and come back!"