This Captain Zhou, looking at his face, is in his thirties, and he looks very ordinary, maybe he has been too guilty in the past few days, and he looks a little sloppy, which is similar to Zhang Han's image.

Zhang Han couldn't help but glance at the other party, in the current officialdom, there are not many guys like this who know how to do their duty, most of them just want to climb to a high place, and then stretch out their claws to make money, and it has become an ancient legend to lead by example.

didn't say anything more, turned around and jumped off the crater, Yang Chen and Yang Xu brothers also jumped down, grabbed a handful of black scorched earth, tried the feel, put it in front of the nose and sniffed it vigorously,

"It's a high-explosive substance, nitro or something." After Yang Chen finished speaking, he threw away the scorched earth, clapped his hands, and wiped his hands clean on his clothes.

Captain Zhou, who watched this scene, was stunned for a moment, and he could tell what kind of fire it was by smelling the soil, and glanced at Rongwei, which seemed to mean to say, your lie is too boundless, how can the families of the victims have this ability.

Roewe was also full of shock, if he didn't have a deep technical background, he would never be able to do it, it seemed that the people sent down from above were really not of the same grade as them, at least 108,000 miles away.

Zhang Han pointed to the other two craters, "Go and see those two." ”

"Hmm!"

Yang Chen and Yang Xu jumped out and jumped into the other two craters, and within a few seconds there was a shout,

"Boss, these two are the same, they are both military nitro substances, and they are preliminarily judged to be long-range firepower."

Zhang Han lowered his head as if looking for something in the crater, and suddenly jumped out again after a long time, then walked away a few steps and looked back at the three craters.

Captain Zhou and the people in the criminal police team couldn't figure out what he meant, and although Roewe was a soldier, he couldn't guess what he was doing.

"sick!"

"Here!"

The girl came to Zhang Han when she was sick, and Zhang Han said, "Go get me a few buckets of water." ”

"Water? Do you want water to dry, are you thirsty? ”

"Smack!"

The girl's sick head hurts when it is patted, Zhang Han scolded, "If you want to go, you can go, where is so much nonsense!" ”

Captain Zhou hurriedly gestured, "There is an irrigation well over there, I will send someone over to fetch water, is a bucket enough?" ”

Zhang Han nodded, and looked at the crater again, "It's best to have three barrels." ”

"Good!"

Roewe walked over suspiciously and asked, "What do you want water for?" You don't want to soak the crater, do you? This is a sabotage scene, you are not sure not to do this, and then the upper part will chase after you......"

Zhang Han said impatiently, "Whoever is pursuing will come to me." ”

Roewe frowned and sighed, what if people don't look for you at that time, they will hold on to me. However, seeing that Zhang Han was confident, he didn't stop it.

Ning Xiang ran over and looked at the three black craters, "How big a bomb can this be?" ”

Zhang Han smiled, "It depends on what kind of bomb it is, one aerial bomb is enough." ”

This answer is not the same as the donkey's lips, if others will definitely not hear anything, but Rong Wei's body suddenly shook, and then carefully looked at the three craters, a strange appearance that had never been seen before filled his heart, looking at Zhang Han secretly said What was going on in this guy's head!

"The water is coming!"

The girl was sick and a few criminal policemen ran over with three buckets of water, Zhang Han jumped down again, took a bucket of water and poured it into the crater very carefully, only poured less than half a bucket, suddenly stopped, handed the bucket to Lele above, and jumped out again.

Staring at the water at the bottom of the crater, touching his chin, he didn't know what he was thinking, and there was a vague smile on his face.

"Smack!"

snapped his fingers, stared at the crater and fell into deep thought, Rong Wei woke up violently, and looked at Zhang Han again, Zhang Han opened his mouth, his tongue moved, thinking that he was going to explain what was going on, and everyone was waiting, who knew that this guy suddenly turned around and jumped into another crater.

"Lele, give me the bucket."

Captain Zhou frowned and looked at Roewe, "Commissar Rong...... What is he? ”

Roewe was a little irritable, and said with his hands behind his back, "Don't ask me, the devil knows what he's going to do!" ”

Like the previous time, Zhang Han poured another half bucket of water, and then jumped out, looking at the water stains at the bottom of the two craters that had almost completely seeped into the soil, and showed a smile.

"This crater is not supposed to be caused by an aerial bomb."

Roewe asked almost immediately, "Why do you say that?" ”

Zhang Han bent down and grabbed another handful of scorched earth, put it under his nose and sniffed it, explaining,

"The first point has been said before, because of the nitro high-explosive substance, how to say this substance, the explosion power is very huge, but the environmental requirements are not low, I have never heard of any kind of aerial bombs, or air-to-surface missiles are filled with nitro, because no one dares to put more than a billion dollars of planes together with this substance."

Lele asked, "Are you saying that the chemical composition of nitro is extremely unstable?" Not suitable for an airborne strike weapon? ”

Zhang Han shook his head, "No, the nitro group is very stable, but this stability is a little worse than other explosive substances, so there are safer things to use, who wants to take the risk of destroying a billion-dollar plane if it is not done well?" ”

Yang Xu said, "Therefore, the general filling of airborne bombs is TNT, which is safer and more stable, and black gunpowder has long been eliminated, and only some low-cost individual equipment is still in use today." ”

After hearing this, Roewe nodded violently, "You're right, I heard a friend mention this, but what about the second point?" ”

Zhang Han pointed to the crater, "The second discovery allowed me to directly judge what weapon left the crater." ”

Speaking of this, walking around the crater, Roewe and the others were so anxious that they scratched their hearts and livers, and they couldn't wait to go over and open Zhang Han's brain to see what was inside.

Zhang Han lit a cigarette, "You guys come and have a look." ”

Captain Zhou walked over and looked at the bottom of the crater, there was nothing but water in it, or he couldn't understand what was inside.

Roewe suddenly patted his head,

"120-mm large-mouth medium mortar!"

"Smack!"

Zhang Han snapped his fingers and patted Rongwei's shoulder, "Okay, it's very smart, I actually guessed it." ”

Roewe shook his head, "No, if I were an ordinary soldier, I wouldn't be able to guess if I wanted to break my head, but when I first joined the army, I was an artilleryman, and I was more familiar with 120mm medium mortars than the steering wheel." ”

Captain Zhou and those criminal policemen listened loudly, "What's going on?" Didn't it cause an aerial bomb? How did it become a mortar? ”

Zhang Han asked him rhetorically, "How do you determine that it is the crater left by an aerial bomb?" ”

In one sentence, Captain Zhou and Rong Wei were speechless, and after thinking about it, Captain Zhou said,

"That night, some villagers called the police, claiming that there were gunshots and explosions on the other side of the border, and they heard the roar of planes, and then within an hour, the tragedy happened!"