"The divers will go down immediately", Team Liu received a call from Bai Song: "I just made the positioning, and it is estimated that there will be a general result in five minutes." ”

"Well, Team Liu, I have a conjecture to tell you. Bai Song said: "I suspect that between the two doors below, there may be a small submarine stored in normal times, and the people who get on the speedboat are not necessarily all the people." ”

"Submarines? impossible," Team Liu said: "There are not no submarines on our side, they are all registered, and if they are not officially registered, they will not be sold by shipyards." ”

"That's the general situation, and you see that. Bai Song said.

"Actually, just now your Qin detachment also mentioned to me about this diving equipment, let me pay attention to it, but there is no result", Team Liu said: "There are also regular patrols in the river on our side, if there is really one, I guess it would have been discovered a long time ago." ”

"If it's locked between the two doors all the time, then you can't find it, right?" Although Bai Song was very surprised that the Qin detachment mentioned this issue, he didn't ask too much, and continued: "I also speculate that the other party's possible submarine and speedboat are the last way to prepare, and it is impossible to wander around in normal times. ”

"Hmm..." Team Liu thought for a while: "If you are really sure that it is a submarine, you have to report it to your superiors, this matter is not something we can solve, maybe we need to find a unit stationed here to borrow an anti-submarine helicopter." ”

Bai Song was stunned for a few seconds, and the game was getting bigger and bigger!

What the hell is an anti-submarine helicopter!

"Doesn't our river guard have a ship equipped with sonar?" Bai Song asked.

"Yes, but it has to be a larger boat, there are currently few small boats in this vicinity, and it takes an hour or two to transfer a boat from dozens of nautical miles away against the current," Liu said: "You don't have to worry, if the divers really find that there are traces of submarines going out there after a while, the relevant departments will definitely be willing to participate." After all, this kind of thing, to say small, is a case of our public security, and if it is big, it may be regarded as an intermittent behavior. ”

...

Bai Song felt like he was dreaming, but at this time he was extremely excited.

Anti-submarine helicopters!

Generally speaking, a large river like the Yangtze River, as our inland river, is rarely dived into, but it is still impossible to prevent it. As the main tributary, the Xiangjiang River is directly connected to Donghu Lake, so it must attach great importance to this kind of thing.

Submarines, the current policy, are not allowed to drive underwater at will, and general sightseeing submarines have to approve a special area.

Underwater detection, in fact, is not as difficult as imagined, mainly relying on technology.

The installation of a hoisting sonar can allow the helicopter to fly to a certain detection point, hover at a low altitude, and hoist the transducer base array into the water to the best depth, search in all directions in an active or passive way, and search within a radius of 10 kilometers at a time.

If there really is such a big killer, then... Hehe...

This is a dimensionality reduction blow, right?

Bai Song touched his chin with his hand: "Team Liu, it's up to you." ”

"You wait a while", Team Liu said, "The diver will have a clue in a while." ”

Bai Song and Captain Liu continued to chat about other circumstances of the case, and the diver successfully returned to the surface.

According to the diver's account, there is a heavy layer of stainless steel door underneath, which is an electro-hydraulic structure, and it is a waterproof design circuit, which is currently open. Moreover, although the circuit is waterproof, it has now been completely de-energized.

In addition, there is also a water inlet inlet in it, which can allow water to enter it quickly after opening, so that the cabin between the two doors is quickly filled with water, and the internal and external unity of pressure is achieved, which helps the opening of the hydraulic door.

This cabin is about five meters long and wide, and the hydraulic door is large, which can basically meet the needs of people to enter and exit here horizontally.

Due to the sediment problem at the bottom of the river, this cabin has basically been filled in a lot in this short period of time, of course, no one knows how much sand has entered, anyway, it is difficult to judge the depth here, from the instrument, it can be judged that the height should be between 5-8 meters.

The sediment from the bottom of the river slowly enters the chamber with the current, and it can be said that after another hour of entering the water, the chamber will be completely filled with sediment.

In other words, the escape route here is basically a one-time and cannot be used as a standby.

"Can you tell if there is a submarine in this situation?" asked Bai Song.

"I'm afraid not. Team Liu's face was not good: "I didn't expect the water to be so muddy, and our divers can't find any additional clues." This is too difficult, and when this place is completely buried, it is estimated that there will be no way to find clues.

The door of the underground corridor is basically not open. After all, anti-submarine aircraft are not something to be used for, and we have only seen it once in so many years. ”

Bai Song expressed his understanding, and his excited mood just now calmed down a little: "Then let's mobilize the sonar ship to come over." ”

"Okay, I'll ask the substation if there are any fishing boats and salvage boats carrying sonar equipment nearby, and at the same time, the boats of the water security team are also moving here. Team Liu said: "Just leave this matter to us." ”

"Well, Team Liu, let me ask again, when will the DNA results on our side be made?"

"The survey personnel have already taken samples, and it is estimated that it will take more than 8 hours. Team Liu said: "This is already the fastest speed." ”

"Okay, understood. Bai Song nodded, this is already very fast, if the laboratory in Tianhua City works overtime, it will basically be this time.

"Well, we have sent the DNA sequence of the suspect Feng Yiling that you provided there to the DNA identification center, you don't have to worry about this, there is a result, I will definitely tell you as soon as possible." Captain Liu said: "Director Li of our sub-bureau will also arrive at the scene in a while, it is estimated that in half an hour, the people from the city bureau and the provincial department will have arrived, do you still come over to take a look?"

"No, we have a forensic doctor there, you can help take care of it more, you should get in touch with the people of our plainclothes corps", Bai Song said: "I'm still looking for the situation of this submarine outside." ”

"There's no good clue about this, so I'm in a hurry. Team Liu said.

"The clue is indeed now..."Bai Song was just halfway through speaking, when he suddenly received a text message on his mobile phone, he was stunned for a moment, and then trembled: "Team Liu, I can be sure that there is a submarine!"

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