In fact, at this stage, purely in terms of on-site investigation, Sun Jie is definitely more powerful than East China, after all, this is one of the duties of forensic doctors, and forensic doctors themselves belong to the on-site investigation department. It's just that Huadong took the initiative to ask Ying, and Sun Jie didn't say anything.

The four of them followed the footprints and went up the mountain little by little.

In some sections, the footprints have been treated, but the level of treatment is very clumsy, and the four people are on guard before and after, and they arrive at the destination after more than ten minutes.

"The road surface here is padded. Bai Song's tone was a little heavy: "These scammers have a big plan, and the road here can already allow professional off-road vehicles to pass." ”

"You mean, this road can lead straight to the liar's lair?" Sun Jie was a little puzzled, "With this road surface, how can the car run?"

"Yes", Bai Song said: "My friend Zhang Wei has been telling me about the car a few days ago, and he told me that some heavily modified off-road vehicles are not difficult to cross a shell crater and a stone road. The pavement has been treated, and if it weren't for traffic, there would be no need to cut down these trees. ”

"Well, that makes sense", Sun Jie nodded: "If you want to carry out an arrest, this road must find a way to seal it." ”

"Well, we'll talk about that then. Bai Song raised the steel bar in his hand: "You can't stop the off-road vehicle with this." ”

"Well, let's see what these three people did first. "Sun Jie was under a tree and found a battery.

"Lithium battery battery", Sun Jie weighed the weight, only six or seven catties, "This thing is not cheap, this battery can store one or two kilowatt-hours of electricity." ”

Many people don't understand the concept of battery and only know the milliampere-hour of the mobile phone, but they don't know what the concept of this milliampere-hour is.

Using the electricity at home to calculate, a 3.7 volt voltage, 5000 mAh large mobile phone battery, theoretically can release 3.7 volts multiplied by 5 amperes and then multiplied by 3600 seconds of energy, expressed in household electricity "degrees", that is, 0.0185 degrees.

That is to say, regardless of energy loss, one kilowatt-hour of electricity can be filled with more than 20 of these batteries, and almost 10 power banks can be filled.

One or two kilowatt-hours of electricity, which is already the storage power of the car battery, is enough to eat a hot pot.

There was a wire attached to the battery, all the way up to the tree.

"Who's going up to take a look?" Wang Liang pointed to a tree five or six meters high.

"When it comes to electronic equipment, someone claims to be an expert..."Wang Huadong looked puzzled: "Eh? Who said that?"

"Cough, cough", Wang Liang touched his chin: "With my professional knowledge, electronic equipment, no matter what, cut the wires, once and for all..."

After speaking, Wang Liang raised the pliers in his hand, and said in his heart, how could he be so witty!

Bai Song's face was black: "If you say that you cut it, you still need to say, you cut this thing, can they know it? Besides, you dare to cut it if you don't know anything? What about the bomb? Or you will cut it, let's hide away." ”

Wang Liang looked at a few people, and everyone ignored him.

Let's climb...

Wang Liang is one meter seven or eight tall, and he is really not good at climbing trees, but he is more flexible than Bai Song, and the three of them gave him a hand, and Wang Liang climbed up.

In the middle of the tree, Wang Liang saw a machine, clamped the tree with his legs, looked at it carefully, and tinkered for more than ten minutes before slowly climbing down.

After coming down, Wang Liang's legs were shaking, he couldn't stand steadily, and he sat on the ground.

"What's that? Look at it for so long. Wang Huadong asked.

"Remote control open full-band jammer. Wang Liang took a breath and said word by word, after speaking, he slowly got up and took his mobile phone to observe the battery.

"Do you know all this?" Bai Song couldn't help but be a little surprised: "Yes, but what is this thing for? Why did it take so long to come down?"

"I took my mobile phone and looked at a few words on the Internet..."Wang Liang scratched his face: "Hey, I haven't learned a lot of words..."

"Okay..."Bai Song nodded: "What is this thing for?"

"Interfering signals. Wang Liang pointed to the battery: "This battery has been modified in series, it was originally a 12-volt battery, but now it has been modified into a 200-volt DC battery, and the wire is also a copper wire used for household alternating current."

This device has a power of up to 3000 watts and is now turned off. Once the remote control is turned on, a wide range of full-band interference can be achieved within half an hour. ”

"In order to interfere with the mobile phone signal?" Sun Jie looked at the barren mountains around him, "Why are you installing it here? There is no signal around here, are you mistaken?"

"Yes, yes", Wang Huadong complained: "Maybe this is a signal gain amplifier, it is estimated that the scammer thinks the mobile phone signal here is not good." ”

"Did you install this thing at three or four o'clock in the middle of the night?" Wang Liang was a little speechless: "You are still a policeman?"

Wang Huadong didn't bother to pay attention to Wang Liang, and walked under the tree, "No matter what this is, we can't let him use it well, and we can't let these people know that we have done something, what is the best way?"

"This?" Wang Liang frowned, "It is definitely useless to install a wireless switch, once this device is turned on, it is indistinguishable, I install a wireless device, and there is no signal as soon as this machine is turned on." ”

"It's simple. Bai Song took the mobile phone and carefully took a look at the power cord here, "This circuit looks complicated, in fact, there are three parts, the first part is the structure between the overall series battery and the machine; the second part is the current signal structure, that is, to test whether the whole system is faulty; the third part is the remote control switch structure, which is actually connected to the second part, which is the original voltage of the 12V battery. Now it's actually very simple, the second and third systems are always on, the power consumption is very low, the first system is closed, the two main wires, now there is no power, the shell of the two wires is stripped off, exposed contact, once the power is on, it will be short-circuited immediately. ”

"Okay, that makes sense, in this case, once it is activated, it will automatically burn. Zhang Jie looked around: "Will it cause a mountain fire?"

"You've thought about it too comprehensively, right?" Bai Song thought for a while: "But, no, give me the pliers, and I'll adjust the direction of the wire, so that once it is short-circuited, it will automatically melt the copper wire in contact with it, and it will automatically cut off the power after it is fused, and there will be no fire hazards." ”

"You say, is this the kind of equipment here?" asked Wang Huadong.

"I don't know from afar, there should be this one around here, don't underestimate the coverage of this. Wang Liang thought for a while: "Generally, the power of the transmission tower of the TV tower across the urban area is only a few tens of kilowatts, and this jammer has three kilowatts. ”

"Well, it's not too early, let's go back early", Bai Song pointed ahead: "About a kilometer ahead, it's the scene where the murder happened tonight, let's go back the same way." ”

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