Police cars roared by.
Two police cars drove directly into the industrial park of the development zone.
As a long-established industrial park in Hua'an, it houses numerous enterprises. The location of this incident was Shenfeng Chemical Plant.
This morning, during a routine inspection, chemical plant workers discovered that a valve had been opened, and dangerous chemical gases were leaking out at a rapid rate.
If it weren't for the alert and timely discovery by the staff, this valve would have continued to release gas, causing severe consequences.
Major hazardous chemical leak!
These nine words alone are enough to send chills down one's spine.
Therefore, after the case was reported to the Development Zone Branch, the branch personnel found that the valve had been opened by someone, so they immediately raised the case level by one level and reported it to the Major Crimes Team.
Zhao Dong, Liu Keming, and members of the Third Squadron rushed to the scene.
......
"We meet again!"
The entrance to the Kamikaze Chemical Plant.
Qin, the team leader from the Development Zone Branch, shook hands with Zhao Dong, Liu Keming, and others, and then nodded to Guan Feng.
Zhao Dong asked succinctly, "What did the technical department say?"
Team Leader Qin said in a somewhat serious tone, "We can confirm that the valve was sabotaged by human intervention."
Zhao Dong frowned and asked, "Where exactly is the valve? Take us to see it! Keming, contact the technical department and have them confirm it. Old Qin, it's not that I don't trust you, but this is a very important matter. Double confirmation will ensure nothing goes wrong!"
Team Leader Qin nodded, handed over a few masks, and said, "I understand, Captain. Come with me!"
Everyone put on masks and followed Team Leader Qin into the factory. As soon as they entered, they were hit by a pungent odor.
Team Leader Qin explained, "Fortunately, it was discovered in time, and chemicals were used to neutralize it immediately, preventing a larger spill. The factory took remedial measures immediately after the gas leak occurred, and the gas concentration was reduced to a minimum before you arrived, so it had little impact."
"That's good! The important thing is to avoid causing loss of life and property to the people!"
Zhao Dong nodded and followed the people from the Development Zone Branch through a maze of twists and turns until they arrived at a valve.
The area around the valve had been cordoned off, and police officers were on duty. Upon seeing Captain Qin, they immediately came over to greet him.
After briefly introducing the identities of the group, Captain Qin lifted the cordon and walked up, pointing to the valve.
Zhao Dong glanced at it, frowned, and said, "Xiao Guan, you're knowledgeable about traces. Before the technical team arrives, take a look at this valve and see if there are any problems!"
Guan Feng stepped forward, squatted down, and began to observe.
Generally speaking, trace evidence examination is the job of the technical department, but Guan Feng has a thorough understanding of trace evidence examination, whether it is footprint identification or the newly obtained wheel rut trace identification.
To put it bluntly, after being enhanced by the identification of tire tracks, he is now no less skilled in trace examination than the technical department.
If you combine that with visual observation, it far surpasses the skills of the technical department.
Guan Feng squatted down and began to observe carefully.
This is a valve that is somewhat rusty and looks a bit worn. The paint on the outside can't cover up the rust marks. There are only obvious traces of rust on the threads where the valve is opened.
Just one glance!
Guan Feng then determined that the valve had been opened by someone.
He squatted down again to continue observing, then put on gloves and touched and wiped the valves and pipes.
Others who witnessed this scene were quite curious.
Team Leader Qin even asked, "Team Leader, is Team Leader Guan also an expert in this?"
Before Zhao Dong could speak, Liu Keming said, "Xiao Guan is an expert in footprint identification. We owe a lot to him in this case involving the foreign teacher. He should be an expert in all aspects of trace evidence examination, right?"
Team Leader Qin said enviously, "Old Zhao, I envy you! Xiao Guan was transferred there less than half a month ago, and the Municipal Bureau has gained another expert. Our development zone is also short of talent."
Liu Keming waved his hand and said, "There's no point in talking about this! What can we do? We're the Major Crimes Unit! Facing all the major cases in the city, it's not about hiding anything, it's just that Guan Feng has to be in this position!"
Team Leader Qin just pursed his lips, clearly not taking Liu Keming's words to heart.
At this moment, Guan Feng had already stood up and followed the pipeline, eventually arriving at another valve.
He looked at Captain Qin and asked, "Captain Qin, where are the patrol and inspection personnel from that time?"
Team Leader Qin said, "He's resting. Do I need him to come over?"
Guan Feng nodded and said, "Ask him if you have any questions."
Liu Keming frowned and asked, "Have you discovered any clues?"
Guan Feng pointed to several marks and said, "Team leader, Captain Liu, Captain Qin, look! This valve must have been rarely opened; the threads are heavily rusted! Plus, the valve disc is quite large, so opening it must have been difficult, which is why these marks were left behind!"
The marks on the valve disc indicate that the paint on the surface has been worn away, revealing brand-new silver-white marks.
Zhao Dong asked, "You mean, these scratches are from freshly ground surfaces?"
Guan Feng said, "Large wrenches are generally F-shaped, with the two discs as the force points, and then they are opened using the lever principle. If I'm not mistaken, that's how it works!"
Make the opening action:
"At the same time, I just checked, and the valves here also have the same marks, but they haven't been opened. I suspect that the suspect tried to open this valve first, but didn't have enough strength! So, as a second option, they opened the second valve!"
He led the group to the second valve.
The group noticed several identical spots of silver-white paint chipping on the valve disc.
Zhao Dong frowned and said, "You mean, this way we can deduce the suspect's strength range!"
Guan Feng nodded and said, "That's right! That's why I need people from the factory to come and estimate the strength of the force. This is also an important clue."
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