Seeing that Zhang Yihan heard me say that, he immediately believed my words, I was very happy, and hurriedly followed Zhang Yihan towards the villa.

In fact, the voice I heard just now was nearly 100 meters away from me and Zhang Yihan, and Zhang Yihan probably only heard someone screaming, but he didn't hear what he was calling at all?

I touched both of my ears, a little smug.

As I said earlier, the people who can enter our unsolved case investigation team are all people with special skills, and just relying on the dead questions of civil servants, even if you are the top student in the provincial civil service examination, you may not be able to enter our unsolved case investigation team. Because the unsolved case investigation team must have special skills to have extra points to have a chance to enter, like me, I entered the unsolved case investigation team because of my ears.

My ears are very sensitive, and my ears have a well-developed auditory-memory nervous system.

In general, the frequency of sound waves suitable for human hearing is in the range of 16 Hz to 20,000 Hz, also known as audible sound.

Theoretically, it is difficult for the average person to hear sound waves below 16 Hz and above 20,000 Hz. In fact, this is only a theoretical hearing range, and most people can't hear sounds that are close to the upper and lower limits.

Because the sound that the average adult can hear clearly is only within 20 Hz to 17,000 Hz, this is still a person with no hearing impairment, and the range of a slight hearing impairment will be smaller.

It is precisely because of this that we scientists call sounds above 20,000 hertz ultrasound, because they have exceeded the upper limit of human hearing; Sounds below 20 hertz are called infrasonic because they are below the lower limit of human hearing.

I'm a freak, and I've been tested to hear in the range of 15 hertz to 50,000 hertz, while my ears can hear sounds in the range of 15 hertz to 48,000 hertz. That said, my ears are almost as sensitive as a dog's.

The main thing is that as long as I hear the voice, I usually don't forget jì, which is very useful when performing tasks. Of course, it doesn't work for too long, for example, the sound of the last ten years, if I only hear it so many times, I still can't remember.

It's not bragging at all, not long after I joined the unsolved case investigation team, there was a secret department that wanted to take me away, but unfortunately our team leader didn't let me go.

There is no doubt that it is precisely because of this that Zhang Yihan heard me say that, and she believed me so much.

I followed Zhang Yihan lightly around the wall behind the villa, and Zhang Yihan stopped.

She whispered to me, "Listen carefully and make sure it's him?"

Well, I nodded, put my ear to the wall and began to listen.

Although my hearing is very sensitive, I have to listen carefully, otherwise I won't be able to hear some very low voices.

Because sound propagates in gases, liquids, and solids, the principle is that the vibration of the sound-emitter provokes sound waves that propagate from near and far in the surrounding matter, and reach the human ear to cause the eardrum to vibrate before hearing is generated. Among them, the vibration energy propagated by solids and liquids is relatively stronger. In some movies and television, those spies and undercover agents use their ears against the wall to eavesdrop on intelligence.

It was quiet, except for the sound of a man tapping on the keyboard and the old woman strolling around the yard in the country house on the other side of the fence. Now I have a little pain in the ass, because I only heard the man say something suddenly, and I am not sure if it is him?

After all, the audio emitted by those loud people is so similar that even I can't recognize it by suddenly hearing him say a word. If only he could say a few more words in front of me.

Thinking of this, I told Zhang Yihan my thoughts: Senior sister, why don't we go in and seduce him to say a few words? As long as he says one more word, I'll be sure.

This is no problem, I'll go to the front to lead her to talk, you are guarding here, for fear that he will escape over the wall. After Zhang Yihan finished speaking, he turned around and walked towards the front door.

After a while, I heard Zhang Yihan knocking on the door in the front yard.

The old woman called out to whom, and then walked over and opened the door. Soon, I heard the man's voice come out: Mom, who is it? Ask before opening the door

It's him! My heart shuddered, because I had been paying attention to his voice this time, and because it was relatively close, I could hear it at once.

I climbed the fence, and just as I climbed the fence, I heard Zhang Yihan outside the courtyard talking: Where did you go last night Stop, don't run Zhang Yihan's last sentence was shouted loudly, and as soon as her scream fell, I had already jumped into the small courtyard behind the villa.

Then, as soon as I landed, I saw a big man with a bare back rushing towards me.

Nima, this guy is really tall, and he is very strong, estimated to be more than 1.9 meters, especially those two tight chest muscles are particularly eye-catching, and as soon as I saw him, I reflexively remembered my favorite Schwarzenegger.

But I was a policeman with more confidence than him, and when I saw him rushing towards me, I pointed at him and yelled, "Stop, policeman."

The big man on the muddy horse scolded, and not only did not stand still, but pounced straight at me.

After all, I also studied in the police academy for a few years, and it is not for nothing that I studied Sanda and Capture for a few years, plus I am a soldier and a thief, although he is very big, I am not afraid of him at all. I clenched my fists and pounced on him.

As soon as the two of us looked at each other, we shot at each other together.

I punched him straight to the chin, he threw a hook to my head, and we both blocked each other's punches at the same time. I only felt a tingling in the arm that was blocking his hook, and then before I could see how he got his kick, I was kicked in the calf, and I slammed my head on the concrete floor, and I felt a dizziness in my head.

The big man scolded me and kicked me in the head. I tilted my head and took the opportunity to grab his foot with both hands.

Damn, look for death! The big man yelled again, and without warning the other foot stepped on my stomach.

I screamed, and he trampled on my ends. He almost didn't squirt out all the lunch boxes I had just eaten that night.

However, I have already determined at this time that this big man is the leader who wanted to burn us last night, and of course I am reluctant to let go. I was also playing with my life, and after being stepped on so hard, I was still holding his leg with both hands.

Seeing that I didn't let go, the big man kicked me hard in the stomach.

Stop it! At this moment, my sister Guanyin came, and I only heard Zhang Yihan roar, and I saw her kicking towards the big man next to me.

This kick is really handsome, the kick is so high, if there is a SLR camera to capture one, it will be absolutely handsome. At this moment, she is really my idol.

However, the fly in the ointment was that the big man next to me suddenly turned sideways and smashed Zhang Yihan in the stomach with a hard punch.

Tom Zhang Yihan was knocked down by the big man's punch, and she happened to sit on my stomach with her butt when she fell.

Ah, I screamed and almost fainted on the spot. At the same time, my hands holding the big man's foot finally let go, because I had no strength in the hand that was smashed by Zhang Yihan. At that time, my first reaction was that Zhang Yihan's ass was really big.

Grass and mud horses, you wait! The big man scolded and turned around and walked over the wall.

Seven or eight seconds later

Zhang Yihan slowly got up from me and said something that almost made me vomit blood: Ouch, it hurts me to death, fortunately you are at the bottom, otherwise my ass will bloom!

Your sister, if you can't do kung fu, don't learn what scuds people use, and they were knocked down with one punch, grass

I didn't have time to deal with Zhang Yihan, so I quickly got up and chased the big man, and when I ran to the wall, I jumped a few times but didn't catch the wall. The main reason was that my stomach was still hurting at that time, and I really didn't have the strength.

At this time, it was already dark, and I knew that even if I caught up with Zhang Yihan, it would not be his opponent, so I simply gave up. As long as I know his identity, I don't believe he can run away.

Zhang Yihan squatted beside me with his stomach covered, and said with a disdainful face: Why are you so bad, you were put down by someone in one face.

I'm rubbing, this almost didn't kill me with a scud, and she's embarrassed to blame me now.

I knew that reasoning with her would definitely not make sense, and the top priority was to quickly find out the identity of that kid and immediately call for a city-wide search.

Then, after our investigation at the old lady's house, Zhang Yihan and I were almost scared to pee on the spot.

That big man's name is Li Dapeng, and we searched out more than a dozen red books from his house. It is full of award certificates for various sanda competitions, most of which are provincial, and Henan Satellite TV's martial arts style has been to it several times. There are also several national competition certificates, and one of the most noteworthy is the runner-up in the 85kg category of a national sanda competition a few years ago.

Nima, when I saw these certificates, I was amused.

I finally realized that it was not that I was too weak, but that others were too strong. He didn't trample me to death with those few kicks, and I was already considered very good at resisting blows. Fortunately, I practiced a few abdominal muscles when I was in the police academy, otherwise I might have lost my life this time.

You must know that according to national regulations, the top three in the province's wushu sanda competitions can be awarded a national second-level athlete certificate. The top three in the national competition can get the national first-class athlete certificate. In other words, this Li Dapeng is a real national first-class sanda athlete. There is nothing false about these red books, this is something that can't be bought with money.

Damn, our luck is really good at home, after investigating the case for a few days, we finally got some clues, but we kicked a steel plate.

Immediately afterwards, we learned from the old lady that Li Dapeng also has two older brothers and one sister, the second brother is dead, and the eldest brother has been missing for many years. Speaking of three sons, in fact, there is only one Li Dapeng left.

When we came out of her house, she grabbed our hands and cried vigorously and said: If Dapeng really commits any crime, you must catch him, and after you catch him, you can help me sue him, and tell him to listen to the party, reform well, and I can take care of myself

When I heard the old lady say that, I felt very uncomfortable. Fortunately, we didn't sue her that Li Dapeng was involved in so many murders, otherwise I guess the old lady's heart would definitely not be able to stand it.

But of course, we will not give up the pursuit of Li Dapeng just because the old lady is pitiful, the state has national law, and it is natural and righteous to kill people to pay for their lives.