Just when there was a red light, Brother Song stopped the car, took out a cigarette from his pocket, lit one himself, handed it to Qi Yuan, and asked, "Would you like to smoke?"

"Thank you." Qi Yuan also picked up one and lit it.

Brother Song chuckled and asked, "But what? Keep talking."

"Hmm." He exhaled the smoke and said: "The height range of the suspect calculated based on shoe length and step distance, the largest error is twelve centimeters, and the smallest error is more than seven centimeters.

I'm quite puzzled, but considering that some short people have relatively big feet, or they habitually take long steps, and some tall people have to walk in small steps, the height can be judged by the length of shoes and the distance between steps.

, in fact, it was just a reference, so I didn’t pay much attention to it.

But since you said there is a problem, Brother Song, then I think the problem should lie here. I suspect that the murderer may have deliberately worn shoes that were one or two sizes too big, and at the same time deliberately took long steps when walking at the scene, in order to release

Smoke bombs to confuse us."

As soon as he finished speaking and the light turned green, Brother Song put the cigarette in his mouth, held the steering wheel with one hand, and quickly put down the handbrake with the other hand while shifting gears, then gently lifted the clutch, applied the gas, and started the car again.

After changing gears several times, he freed up his hand to hold the cigarette and said, "Smoking while driving is not good. Don't imitate me."

Qi Yuan twitched the corner of his mouth and said, "Suddenly I remembered that we, Yu Qiao, should be fined for smoking while driving, right?"

"Well, I'm fined 150 and deducted two points. I'll take the time to pay the fine later." Brother Song laughed bitterly and laughed at himself: "I'm a cigarette addict, so I couldn't help it. I didn't think about getting punished until I lit up, so I just smoked.

alright……"

"Why don't you, Brother Song, put out your cigarette?"

Brother Song waved his hand and changed the subject: "You're right, the problem lies in this gait.

But you happened to ignore the gait problem, and just focused on analyzing the shoe print and step distance. Even if you finally found the problem, you just ignored it.

Therefore, you are not flexible enough. In practice, the situation is not as ideal as the situation given in the textbook. Many times, you need to adapt. Once the data collected has problems, the calculation results obtained will naturally be meaningless.

."

"I understand." Qi Yuan did not defend himself and accepted the teaching with an open mind.

After a pause, Brother Song asked again: "As for the murderer's motive... No, let's not talk about that for now. Have you ever thought about the suspect's motive for playing games with you?"

"I thought about it, but I didn't understand it." Qi Yuan shook his head and said, "When I observed the scene, I also made several assumptions, but in the end they were all overturned one by one."

"Oh?" Brother Song seemed to be interested and immediately motioned for him to continue.

He organized his words before replying: "First of all, and the most direct first thought, I think he is stalling for time and does not want the case to be exposed so quickly.

But when I think about it carefully, something doesn't feel right. The murderer's purpose of delaying time is nothing more than to destroy or dispose of the scene and cause some trouble for our investigation.

But Duan Kun had been dead for more than ten hours. If he had wanted to destroy the scene, he would have had plenty of time, and he would have destroyed it long ago, right? But the fact is that although there are traces of rummaging at the scene,

That’s all…

Afterwards, I wondered if the murderer might just have a guilty conscience. After answering the phone, he subconsciously wanted to avoid the case being exposed, so he pretended to be Duan Kun and played games with me as normally as possible.

But that’s not right. If it’s a subconscious thought, there’s no reason for the sound to be so similar. It’s as if he had expected that I would play games with him and practiced hard for a long time.”

Speaking of this, an idea flashed in his mind, and he suddenly thought of a possibility, and immediately asked: "Brother Song, do you think there is such a possibility? The murderer had planned the crime for a long time, and the purpose was... then...

"

Halfway through, his mind seemed to be stuck, and he couldn't get the words out.

Seeing this, Brother Song smiled softly and said, "Okay, stop guessing. There are too few clues, and there is no point in guessing. Don't worry, you can naturally guess the answer when all the clues are collected."

Qi Yuan scratched his head and asked: "Well, Brother Song, what do you think the suspect's motive is for pretending to be Duan Kun and playing games with me?"

"I don't know," Brother Song shrugged and said, "That's why I asked you."

"ah?"

"You think about it," Brother Song pulled out an ashtray from somewhere, put out the cigarette butt, and then said: "If the suspect wants to imitate Duan Kun's voice, he must first be very familiar with the person he is imitating, right?

In other words, this is an acquaintance committing a crime. You have a relationship with Duan Kun, who has the motive to kill? Or, who has the motive to pretend to be him and play games with you? Or, who sounds like him or imitates his voice?

prerequisite?"

Qi Yuan smiled bitterly: "I really don't know about this. I have only reconnected with him in the past few days, and I haven't met him offline yet.

When Captain Su notified me, I was still thinking that the scene happened to be near his home, and after finishing the case, I might have time to have a meal with him, but I didn’t expect that he would be the one who died..."

"It's okay," Brother Song shook his head: "It's because it's too late today and it's hard to carry out the visit. I can only ask a few people who are watching. Wait for tomorrow and arrange for someone to check the deceased's interpersonal relationship and go to the door to ask about the situation.

, there will be a clue.”

"I hope so." He sighed softly and stopped talking.

…

"Yuqiao City Public Security Criminal Investigation Detachment..."

After getting out of the car, Qi Yuan glanced slightly sideways, looking at the sign hanging beside the door, and couldn't help but take a deep breath.

"Let's go, hurry in," Brother Song patted him on the shoulder and said, "Captain Su must have arrived early and is waiting for us."

He hummed, nodded, and quickly followed.

After walking around for a long time, I finally entered the conference room.

He sat down next to Brother Song, and then couldn't help but look at Su Ping.

A criminal policeman was standing next to Su Ping, whispering something to him. After a while, he saw his brows furrowed.

For a moment, he seemed to feel Su Ping glance at him, but Su Ping's gaze swept across him and he couldn't be sure.

After a while, the detective sat back in his seat. Su Ping glanced at his watch, then knocked on the table and said loudly: "Song, you will preside over the meeting, trainee, follow me."

"Ah?" Qi Yuan was stunned, pointed at himself, and asked uncertainly: "Me?"

Su Ping ignored his reaction and left. Seeing this, Brother Song quickly pushed him, and then he quickly grabbed the notebook he had just placed on the conference table and quickly chased him out.

After catching up with Su Ping, he couldn't help but ask: "Team Su, where are we going?"
Chapter completed!