The slightly chubby deputy detachment leader Wang sorted out the stack of materials in front of him, looked up and said: "Yesterday, our group spent a day colliding all the people from Longxi and those who have lived in Longxi for a long time with the label of Xihua City, and sorted out nearly 100,000 people. After screening out people who obviously do not match their age and gender, there are still about 20,000 people left. Subsequently, we compared the ID photos and portraits of these people through software and manual methods, and found a total of 97 people with high similarity. ”

When Mu Yuan heard this, he was immediately shocked and asked, "How can so many people look the same?"

Deputy Detachment Leader Wang glanced at Mu Yuan, although he was a little unhappy that he interrupted his speech, but he didn't show it on his face, and explained casually: "We set the similarity of 50%, which is also to widen the scope a little bit to avoid missing the real suspect." ”

Mu Yuan quietly pursed his mouth, in the final analysis, he just couldn't believe the paintings he painted.

However, Mu Yuan didn't say this sentence, after all, the portrait of this case was his first simulated portrait in the real sense, and he himself had never seen what the suspect looked like, all based on the oral accounts of witnesses.

Although Miao Yanhui said that the person she painted was exactly the same as the suspect, this one must be in quotation marks.

Therefore, for other people's doubts, Mu Yuan can't go back with confidence......

However, for the similarity set to 50%, Mu Yuan still wants to complain.

Is my drawing skills so bad?

You know, in the analog portrait industry, it is generally believed that only if the similarity is more than 50% has a certain value.

What do you mean, I've just reached the passing mark?

"Okay, Xiao Mu, you listen to Lao Wang finish his words first. Feng Ju said calmly on the side.

Deputy Detachment Leader Wang continued: "For these 97 people, we have sorted out their basic information and checked their trajectories. Now these people, except for a very small number of people who are still in Xihua City, the rest of them are all from all over the world. We now have to check these 97 people one by one, and they are doing face-to-face verification, and we can't call to inform them, so the workload will be very huge, and the demand for funds will be very high. To do this, we need to make a ranking of these 97 people, putting the most likely suspects in front to save as much manpower and material resources as possible. ”

Hearing this, Mu Yuan understood, Director Feng called him over, probably to let him see which of the 97 people looked more similar to the suspect.

At this time, someone asked: "Detachment Wang, in this case, shouldn't the victim be notified to come over for identification? After all, the victim, as a witness, will definitely be able to tell who the suspect is." ”

Mu Yuan turned his head and glanced at the person who spoke, this was a young policeman who was less than thirty years old, and his eyes revealed a kind of shrewdness.

Deputy Detachment Leader Wang said helplessly: "We have contacted the victim for remote identification before, and the results are ...... When she saw a large number of people who looked similar, she was stunned. It is estimated that the victim's mind is now confused. ”

Everyone couldn't help but look at each other......

But Mu Yuan was very calm.

Although the victim is impressed by the suspect, in fact it is only a sensory impression, which belongs to an overall impression imprinted in the victim's mind, and this impression, except for some obvious features, is not supported by very special data.

If there is no external interference, this memory will remain in a stable state, but once a large number of similar faces appear, this memory will be disturbed.

It's somewhat similar to singing.

If you only know one song yourself, that's fine, you won't be off.

But if you can sing a few songs, then be careful: whether the stars in the sky can talk or participate in the Beidou is really hard to say......

Compared with the victim's memory, the impression formed by oneself through the victim's description is more reliable.

To put it in more scientific terms, the victim's memory is equivalent to unstructured data, while his own memory is structured data.

Deputy Detachment Leader Wang then said: "That's all I have to say, and then I will invite Feng Ju to speak." ”

Director Feng shook the pen in his hand and said, "Don't say what the speech is, we are discussing the case now, don't be so bureaucratic." ”

After a pause, Feng Ju continued: "I just learned about the situation that the Wang detachment talked about just now, and then I briefly discussed it with several people in the detachment, thinking that it is unlikely that we will conduct a comprehensive and detailed verification of these 97 people, so it is particularly important to sort out a priority. All of you here have rich experience in handling cases, and most of them have participated in the investigation of this case and know the case very well. Now the information we have at hand contains all kinds of trajectory information and employment information of these 97 people over the years. Of course, this information is not necessarily complete. Now we need to conduct a systematic screening of the information of these 97 people, sort these 97 people according to their own possibilities, and then we will summarize them. ”

After everyone listened, many people nodded.

This is indeed a good approach, and it also uses some principles of probability to increase the probability of screening out suspects.

As he spoke, Director Feng looked at Mu Yuan again and said, "Xiao Mu, among those of us, I'm afraid you are the one who has the most say in the appearance of the suspect, or you should make a comparison first." ”

Mu Yuan nodded very dryly and said, "No problem." In fact...... Not only am I good at comparing these photos, but I'm also good at analyzing the data. ”

Feng Ju was stunned, then laughed and said, "With your words, I'm relieved." In this case, we will compare the data first. In addition, I will find you a separate office and prepare a copy of all the materials and photos for you. ”

"That's great. Mu Yuan was not polite, "But...... Feng Ju, I didn't have much to eat for breakfast, can I go buy something to eat first?"

Feng Juhu glanced at him suspiciously, and always felt that Mu Yuan's words were not very credible.

With this guy's dedication to food, as long as he sits at the table, there is definitely no situation where he is not full - after all, this guy was not called down from the dinner table by himself, and he must have finished breakfast by the time he called.

Is it because this guy thinks that there is too much information and it takes a long time, so he is ready to prepare some food for a protracted battle?

There's no need to fight so hard, right?

But in the end, Feng Ju nodded and said, "Why do you need to go to this matter? You're really hungry, I'll just ask someone to order takeout for you." ”

Mu Yuan smiled bitterly and said, "The takeaway is too slow, I'm ...... I'm hungry and uncomfortable, and I'm afraid I can't wait. I remember there was a bakery right outside the door, and I would just go buy some bread and milk or something. ”

Feng Ju secretly said that this kid is afraid that he is really a starving ghost reincarnated, and then said: "I'll just let people sell it, how much do you need?"

"The more, the ...... Uh, it should be enough to buy seven or eight bags, well, the big bag, and three or five cartons of milk. It should be about the same. Mu Yuan originally wanted to say that the more the better, but he felt that this was not rigorous enough, and it was difficult for others to operate, so he gave a more specific number.

The others who didn't know Mu Yuan's roots all widened their eyes, and they looked at Mu Yuan as if they were looking at God.

Who can eat seven or eight bags of bread at once? and big bags......

Especially the deputy detachment leader of the slightly chubby king, he has always felt that his meal is large enough, but now he has a feeling of being crushed.

"Okay! I'll have someone sell it. Feng Ju swept his eyes, stared at Deputy Detachment Leader Wang, and said, "Lao Wang, please take a trip, I often see you carrying bread for breakfast, you should know what bread tastes good." Buy some more and come back, I guess there are many people here who haven't eaten breakfast, just to fill their stomachs. ”

Although Deputy Detachment Leader Wang was a little depressed, he still accepted it—what could he do if he didn't accept it? Could it be that he said arrogantly: I don't want to go?

Mu Yuan ignored the complicated feelings of these people, and under the arrangement of the Gong detachment, he came to an office next to him.

The first thing he did when he entered the door, Mu Yuan first looked at the entire office as a whole.

The office is not big, just about ten square meters, in addition to a desk, there is also a sofa.

Mu Yuan nodded secretly, an office with a sofa is a good office.

"Xiao Mu, you sit down first, and the information will be sent to you soon. The Gong detachment said with a smile, "Do you drink tea?"

"Drink. Mu Yuan readily agreed.

The criminal investigation detachment of the entire Municipal Bureau, and the Gong detachment know Mu Yuan's ability best, especially the marksmanship performed before, which made the Gong detachment admire it so much, not to mention that Mu Yuan's ability to investigate and handle cases far exceeds that of Tongji.

Therefore, the Gong detachment is also very attentive to Mu Yuan, and he is still thinking about when this young man can be transferred to the detachment to work.

Sure enough, as the Gong detachment said, within a few minutes, a policeman held a large stack of information.

Almost following the footsteps of the policeman, Deputy Detachment Leader Wang walked in with a large bag of bread and milk.

"Detachment Gong, Detachment Wang, you guys go get busy first, I'll just watch here alone. Mu Yuan said with a smile.

The Gong detachment didn't doubt him, and smiled: "Okay, you take your time, we won't bother you." ”

After speaking, the Gong detachment greeted the deputy detachment leader of Shangwang, and the two left the office together.

Originally, Deputy Detachment Leader Wang didn't want to leave, he wanted to see if Mu Yuan could finish the big bag of bread, but now that the Gong detachment has said it, he can't just die and not leave, right?

After the two left, Mu Yuan closed the door casually.

opened the system interface, took out a bottle of potion from the backpack, and his expression became a little complicated.

"It's good, but it's easy to hurt!"

If it weren't for the fact that he could solve the case as soon as possible, Mu Yuan really didn't want to use this thing......

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