happened to encounter a red light, Brother Song stopped the car, took out a cigarette in his pocket, lit it himself, handed it to Qi Yuan, and asked, "Do you smoke?" ”

"Thank you." Qi Yuan also pinched one and lit it.

Brother Song chuckled and asked, "But what?" Go ahead. ”

"Hmm." He exhaled smoke and said: "The height range of the suspect measured by the length of the shoe and the distance between the steps is 12 centimeters, and the smallest one is more than 7 centimeters."

I'm quite puzzled, but considering that some short people have relatively large feet, or habitually take big steps, and some tall people can't walk with small steps, judging height by shoe length and step spacing, in fact, it's just a reference, so I don't care too much.

But since Brother Song, you said that there is a problem, then I think the problem should be here. I suspect that the killer may have deliberately worn shoes that were one size or two larger, and at the same time deliberately took long strides as he walked around the scene, in order to release smoke bombs to confuse us. ”

As soon as the words fell, just as the green light happened, Brother Song put the cigarette in his mouth, held the steering wheel with one hand, quickly lowered the handbrake with the other hand and shifted gears at the same time, followed by a light lift of the clutch, fuel, and started the car again.

After changing gears several times in a row, he put his free hand and grabbed the cigarette, and said: "Smoking while driving, it's not good, don't learn from me." ”

The corners of Qi Yuan's mouth twitched, and he said, "I suddenly remembered, let's Yuqiao, we will be punished for driving and smoking, right?" ”

"Well, a fine of one hundred and fifteen, two points will be deducted, and I will take the time to pay the fine when I turn around." Brother Song laughed bitterly and laughed at himself: "I have a big addiction to smoking, I can't help it, I only thought of being punished when I lit it, so I just smoked it......"

"Or, Brother Song, have you snuffed out your cigarette?"

Brother Song waved his hand and diverted the topic: "That's right, the problem lies in this gait."

But you happen to ignore the problem of gait, and only focus on analyzing shoe prints and stride spacing, and even find a problem in the end, and ignore it directly.

So, you're not flexible enough, and your practical work isn't as idealistic as the textbook gives you, and a lot of the time you need to be flexible. Once the collected data is already problematic, the calculated results are naturally meaningless. ”

"Understood." Qi Yuan did not defend himself and was humbly taught.

After a pause, Brother Song asked again: "About the murderer's motive for committing the crime...... No, let's not talk about that, have you thought about the suspect's motive for playing the game with you? ”

"I thought about it, but I didn't think about 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 the language before replying: "First of all, I know the most direct first thought, I think he is stalling for time, and he doesn't want the case to come to light so quickly.

But when you think about it, it's not quite right. The murderer's purpose in delaying time is nothing more than to destroy or deal with the scene and add some trouble to our investigation.

But Duan Kun has been dead for more than ten hours, if he wants to destroy the scene, there is plenty of time, he must have destroyed it a long time ago, right? But the fact is that although there are traces of rummaging at the scene, it is limited to that......

After that, I wondered if the murderer was just a simple weak-hearted, and after answering the phone, he subconsciously wanted to avoid the exposure of the case, so he disguised himself as 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 why the voice is so similar, as if I had expected that I would play games with him, and then deliberately practiced hard for a long time. ”

Speaking of this, a flash of inspiration flashed in his mind, and he suddenly thought of a possibility, and immediately asked: "Brother Song, do you say that there is such a possibility, the murderer committed the crime, and he has been premeditated for a long time, and the purpose is...... It's ......"

Halfway through that, his brain seemed to be stuck, and he couldn't spit it out.

Seeing this, Brother Song smiled lightly and said, "Okay, don't guess." There are too few clues, and there is no point in guessing. Don't worry, wait for the clues in all aspects to be gathered, and you will naturally be able to guess the answer. ”

Qi Yuan scratched his head and asked, "Then, Brother Song, what do you think is the motive of the suspect to disguise himself as Duan Kun and play the game with me?" ”

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

"Huh?"

"Do you want to," Brother Song pulled out an ashtray out of nowhere, extinguished the cigarette butt, and then said: "The suspect wants to imitate Duan Kun's voice, first of all, he must be quite familiar with the object of his imitation, right?"

In other words, this is an acquaintance committing a crime. You have a relationship with Duan Kun, who do you think has the motive to kill? Or, who has the incentive to pretend to be him playing games with you? Or, whose voice is with him, has the prerequisite to imitate his voice? ”

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

When the Su team informed me, I still thought that the scene happened to be near his house, and when the case was completed, maybe there would be time to have a meal with him, but I didn't expect that it was him who died......"

"It's okay," Brother Song shook his head: "Today is because the time is too late, and the visit work is not easy to carry out, so I can only ask a few onlookers." Wait for tomorrow, arrange someone to check the deceased's interpersonal relationships, and come to the door to inquire about the situation, and there will be clues. ”

"Hopefully." He sighed softly and stopped talking.

……

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

After getting out of the car, Qi Yuan looked sideways slightly, looked at the signboard hanging by the gate, and couldn't help but take a deep breath.

"Let's go, hurry up and get in," Brother Song patted him on the shoulder and said, "Team Su is estimated to have arrived early, waiting for us." ”

He mumbled, nodded, and quickly followed.

After walking around for a while, 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, and after a while, he saw him frowning.

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

After a while, the criminal policeman sat back in his seat, Su Ping glanced at his watch, then knocked on the table, and said loudly: "Song, you come to preside over the meeting, trainee, you come with me." ”

"Huh?" Qi Yuan was stunned for a moment, pointed to himself, and asked uncertainly, "Me?" ”

Su Ping didn't care about his reaction and left directly. Seeing this, Brother Song hurriedly pushed him, and he quickly grabbed the notebook that had just been 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?" ”

"Forensic Evidence Section." Su Ping didn't look back, only said, "There is something for you to identify." ”