There are more than 50 motherboard fragments, of different sizes, and the appearance is similar, if you are not a professional, you will not be able to distinguish the name and purpose of each motherboard.

Fortunately, Xiao Xuan of the Technical Investigation Department is a professional, he is a hacker, and naturally he is also a computer expert, and he treasures these motherboards, and even every circuit and every stitch on them.

"These are the motherboards on the computer, how did it become like this? Did the computer explode? Xiao Xuan picked up the evidence bag one by one and carefully observed the motherboard inside, and suddenly asked me lightly.

I nodded and said in a deep voice, "It's a bombing, and these were all found at the scene of the explosion." ”

After listening to me, Xiao Xuan instantly cheered up, looked at me expectantly, and asked seriously, "Is it a bomb?" It's the kind of man-made bomb, like a time bomb, or a mercury bomb, or a remote-controlled bomb. Just like in Hong Kong films? ”

The more Xiao Xuan talked, the more energetic he became, and he even told me a joke: "Brother Qin, have you ever seen a joke, saying that a young man was walking on the road, and a beautiful woman came up to him, and a remote control fell off the beauty, and the young man picked it up and looked at the beauty, the beautiful woman had a ruddy complexion, and she was very embarrassed." The guy smiled subtly, and then pressed the remote control, and as a result, the subway station next to him suddenly exploded! Hahaha! ”

I frowned a little helplessly, looked at Xiao Xuan, who made me laugh at the joke, and said angrily: "It's useless to talk nonsense!" Hurry up and see! If you can see it, I'll tell you what the bombing is about. ”

Xiao Xuan sighed disdainfully, and muttered in his mouth: "It's really boring, I don't laugh when I listen to the joke." ”

With that, he turned his head and continued to look at the pieces of the motherboard in the evidence bag.

After looking at about two dozen or so, Xiao Xuan suddenly put a motherboard in his hand in front of him and observed it repeatedly.

He only glanced at the previous two dozen or so, and each motherboard stayed in front of him for no more than five seconds, but this one, he was carefully observing.

"Something wrong with this?" I hurriedly asked.

Xiao Xuan didn't reply, and after a careful observation, he put the motherboard in his hand aside and continued to look at the remaining motherboard.

The remaining thirty or so motherboards were the same as before, and Xiao Xuan quickly glanced at them and threw them aside.

After about five minutes, Xiao Xuan piled all the more than fifty evidence bags in front of me, and once again picked up the strange motherboard to take a closer look.

For me, I don't see anything at all, except for the different shapes.

"Those are all computer accessories, but this one doesn't seem to be on the computer." Xiao Xuan looked at it for a while, and suddenly said in a deep voice.

"It's not on the computer, where is it?" I went up and took a look.

"This one seems to be the motherboard on the phone...... Xiao Xuan muttered.

Hearing this, I felt a sense of loss in my heart, because mobile phones and computers are very common things, and explosions can blow up computers and can also blow up mobile phones.

It seems that there is nothing strange about these motherboards......

Since this path does not work, then the case can only be investigated from this game production company to see if there are any enemies......

Just when I was thinking urgently about how to investigate this explosion case next, Xiao Xuan suddenly said: "But this motherboard is different from the motherboard on the phone." ”

I frowned suddenly, looked at Xiao Xuan, then looked at the motherboard in his hand, and asked lightly: "So, where did this motherboard come from?" ”

Subsequently, Xiao Xuan explained to me in detail the lines on this motherboard, and what each stitch is used for.

I don't understand it, I don't have the heart to listen to it, I just want to know what this motherboard is.

"This motherboard is at least certain that it is not on the current smartphone, because the current smartphones are very thin, and the screen is very large, and the corresponding motherboard is also very thin and very large. But you look at this motherboard, it's very narrow, and it's very thick. Although affected by the explosion, I don't know the full picture of this motherboard, but this motherboard alone can't fit a smartphone at all. Xiao Xuan explained to me seriously.

But he obviously overestimated my ability to understand these things, and he rambled for a long time, and I still looked at him with a confused face.

Then, I asked weakly, "So...... And then what? ”

Xiao Xuan pursed his lips, didn't bother to continue to explain to me, and directly gave me a conclusion: "This is the motherboard of an old mobile phone, that is, ...... The kind of very, very old mobile phone, the kind that has nothing to do with the word smart at all. ”

"Very old phone? You mean, the senile machine? I paused and asked slowly.

Xiao Xuan shook his head: "It's not that the style is old, it's that the time is old, because this motherboard has long been eliminated, how to say it...... It should also be at least a phone from more than a decade ago. ”

"A mobile phone from more than 10 years ago?!"

I was stunned, you must know that the mobile phone more than ten years ago was only a semi-smartphone, and it was the kind of style that could not be connected to wifi, but could use data to surf the Internet.

Ten years ago, when smartphones were just emerging, it was a critical moment for mobile phones to be updated and the old to be replaced.

Moreover, that kind of semi-smartphone has long been eliminated, and factories no longer produce it, so even if you want to buy it, you may not be able to buy it.

Why is there such an old mobile phone motherboard at the scene of the crime?

I pondered for a moment and said to Xiao Xuan seriously: "Can you accurately determine what brand of mobile phone this motherboard is?" It's also good to know the model of the phone. ”

Xiao Xuan pondered for a long time before slowly opening his mouth to give a reply: "Yes, it can be, but it will take time." ”

I don't care about the process, I just want the result, and after hearing him say yes, I immediately put my mind at ease and leave the matter to him.

"Xiao Xuan, this explosion case is not trivial, the social impact is very bad, you must find out the origin of this motherboard as soon as possible, this is very important for us to solve the case. Because of the explosion, it is very likely that there is more than this one, and the next explosion may happen at any time! I stared into his eyes, put my hand on his shoulder, and said earnestly.

Xiao Xuan also felt the seriousness of the matter, immediately changed his eyes, and replied seriously: "Don't worry, Brother Qin, as soon as I find something here, I will notify you immediately." ”

I nodded, left the phone board to him, and left with the remaining pieces of the motherboard.

At present, two deaths and two injuries have been caused in this case, and the forensic medical department is doing autopsy work, but there should be no valuable clues.

After all, man-made bombs can kill people directly, and there is no need to carry out other killing methods. And the explosion is not like a fire, it can destroy the body and the scene of the crime, cover up the real cause of death, and confuse the public.

I took the remaining pieces of the motherboard in my hand to the Identification Section and returned to the Serious Crime Unit office.

The criminal police team has also determined the identity information of the current victim, and the remaining two people who escaped the catastrophe have also been found, they are already speechless with fear after hearing about the explosion, and the investigation and questioning will be carried out after their emotions are stable.

The investigation of the case is proceeding in an orderly manner, but I am curious about whether this explosion is related to the March 18 explosion seven years ago......