"These two people are my suspicion. If we look at the criminal behavior theory, the possibility of this middle-aged man being the robber is as high as 80%! Perhaps his briefcase is not containing any documents, but white... money!" Bai Yan looked at everyone and said with a few words.

"That, Detective Bai, can I ask a question?" Cheng Nuo raised his hand and said.

"Okay, you said." Bai Yan's mouth showed a faint confidence.

He still doesn't believe that the questions raised by a high school student will not be able to solve them himself!

"That, I just want to say that the middle-aged man in the photo has one less index finger on his right hand." Cheng Nuo pointed out Bai Yan's mistake very "kindly" with great intentions.

Bai Yan was stunned. He turned his head and stared at the right hand of the middle-aged man with a briefcase in the photo.

Sure enough, because the surveillance screen was a bit blurry, Bai Yan was not paid attention to this at the beginning.

Now that I stared at it carefully, I could indeed see that the middle-aged man's index finger was missing from the right hand.

In the robber's photo, the index finger on the robber's right hand is completely normal. There is no missing section.

Bai Yan: "…"

Bai Yan glanced at Cheng Nuo speechlessly.

How did this guy... discover this?

He only found this detail by sticking his face almost on the photos.

The location of Chengnuo Station is at least three or four meters away from the photo!

What Bai Yan didn't know was that Cheng Nuo's data ability could appear in Cheng Nuo's eyes, no matter whether it could be seen clearly or not.

Cheng Nuo just found that the length of the index finger of his right hand was abnormal, only 2.11 cm when collecting data from the middle-aged man in the photo! Only then did he infer that the man's finger was missing.

Bai Yan, who was demolished by Cheng Nuo, now seemed a little embarrassed.

The last second I just promised that the middle-aged man was one of the robbers, and the next second I was slapped in the face by Cheng Nuo casually.

This slap in the face...it's not too fast!

Facing the slightly suspicious gaze of Captain Yang and Jiang Lan, Bai Yan coughed awkwardly to cover up his embarrassment. Then he took a deep breath and calmed down his mood that was a bit like a beating. He pointed to the photo of the second robber and said.

"Let me talk about the second robber. I found three suspects with similar physical characteristics to this robber." Speaking of this robber, Bai Yan obviously seemed much more confident. "These three people were selected from thousands of people. I am 100% sure. Among these three people, there is the robber we are looking for."

Swish—!

Suddenly, when Bai Yan's flag was finished, Cheng Nuo slowly raised his hand.

Bai Yan's face froze, trying to calm his tone, "Student Cheng Nuo, do you have any questions?"

"Oh, I have a small question." Cheng Nuo smiled, walked to the whiteboard, and took down the photo of the second robber.

Then, he spoke slowly, "Detective Bai, I found a problem. The arm lengths of the suspects you found are different from those of the robbers."

"Oh?" Captain Yang was interested. "Little brother, how did you see it?"

Although the size of the two photos is the same, the proportion of characters in the photos accounts for the entire photo is different.

It’s like a photo taken from the same person, close-up, and a photo taken from the distance. The size of the picture is the same, but the proportion of the person in the photo is different.

This is why it is impossible to compare two different photos and characters with different proportions to extremely accurate results. What Bai Yan can do can only estimate a rough value.

Facing Captain Yang's questions, Cheng Nuo shook his head and smiled, "Captain Yang, someone can't do it, I can't do it."

Mr. Bai Yan, who did not want to be named, turned dark.

"Don't you know what my nickname is?" Cheng Nuo glanced at Captain Yang and said.

"What is it?" Captain Yang cooperated with Cheng Nuo's show-off this time.

"Famous Detective Edogawa? Nonan!"

Edogawa...Noran? Ah, Nonan!

Captain Yang was confused!

Bai Yan held his arms and silently looked at Cheng Nuo, who had already started to perform.

Show! Please continue showing!

I just watched you show with the Italian cannon from the Second Battalion Commander!

Cheng Nuo passed the data in his mind, took the photo of the robber No. 2 and spoke.

"By the photos alone, we must not know the height of the robber and the length of his arm. However, we can see this." Cheng Nuo pointed to the floor tiles on the bank floor in the photo and said, "The specifications of the floor tiles in the bank are 300*400mm, that is, the length of the porcelain tiles is 40 cm and the width is 30 cm!"

"The number of floor tiles covered by the robber's shadow is 3.54. Then the length of his shadow is 141.60 cm!"

"Qingcheng Bank Minjiang Road Branch is located at 120.3354 degrees east longitude and 36.0748 degrees north latitude. The time is 7:05 in the morning. The sunlight angle at which the sun is 32.14 degrees is reached."

"By calculating the above data, we can find that the robber's height is 178.28 cm! According to the ratio, the robber's arm length is 0.3397 of height, so his arm length is 60.57 cm!"

Cheng Nuo breathed a sigh of relief and pointed at the three suspects Bai Yan found.

"Next to talk about this person's arm length!"

Cheng Nuo pointed to the street lamp pole next to the man in the photo and said.

"Generally speaking, these street light poles are of uniform specifications. So the height of the street light poles can be determined, which is 8.00 meters! Because the camera, suspect, street light, and three objects are not in one plane. Therefore, the height of the street light needs to be calculated through angles. The angle between the street light and the camera is... After the above data calculation, it can be concluded that the suspect's arm length is 58.35 cm! The difference between two centimeters is quite large. So it is ruled out!"

"Okay, let's talk about the second suspect found by Officer Bai. We use the briefcase he held as a reference. The briefcase is 16 inches, which is 53.33 cm, and then..."

Cheng Nuo was in front of the whiteboard, and was eloquently analyzing the arm lengths of several people in the photo with a reasonable and well-founded analysis.

Little did they know that Bai Yan and the other two had already heard it!

Needless to say, Jiang Lan, as Cheng Nuo's mother, watching Cheng Nuo talk about a bunch of numbers that he couldn't understand in front of the whiteboard, was shocked and a little relieved.

Look at how powerful my baby son is, he is even more professional than the two policemen!

Bai Yan stood there blankly, his heart was filled with storms and waves. For a moment, he didn't know what to say.

It would be fine if Cheng Nuo's long list of data was just nonsense. But the key is... those data are really reasonable and well-founded.

For a moment, Bai Yan felt a little suspicious of life!

I... can't compare to a high school student?!

OK, you won!

You don’t need to buy oranges for me, and you don’t need to move orange trees far away. Because... Oranges are so stupid that they come here by themselves!

…………
Chapter completed!