A forensic doctor is reborn, sir, please don't bully me!

Sensing the hidden meaning in Bai Mengfei's words, Zhao Fei immediately looked surprised and asked in confusion, "Why do you say that?"

Bai Mengfei no longer hid anything and said frankly, "Is it really appropriate for you to always have our forensic doctors do so many seemingly insignificant things?"

“What’s wrong with this? Those who are capable should do more! Besides, this isn’t a trivial matter. Helping me investigate the scene is part of your job!” Zhao Fei argued.

Bai Mengfei glanced back at Xiang Yuntian, smiled slightly, and said to Zhao Fei, "You make it sound like there's some truth to it, but I don't really believe it. But whatever, since you've said so, let's do as you say!"

After saying that, she took off her protective suit and then tried to persuade Xiang Yuntian: "Why don't you help Captain Zhao one more time?"

Out of respect for Bai Mengfei, Xiang Yuntian nodded slightly and agreed.

Afterwards, they went to the school from back then, to the science office, to find their former teacher, Ma Chang.

Under the director's arrangement, Ma Chang soon arrived at the Academic Affairs Office to meet with Zhao Fei and others.

The director kept speaking well of Ma Chang, saying things like he firmly believed Ma Chang wasn't that kind of person and wouldn't do such a thing.

Ma Chang also strongly insisted on his innocence, claiming that he must have been wronged by a student's prank.

"Whether he's innocent or not, we'll probably have to wait until we get back to the police station to find out. Mr. Ma, would you please come with us?" Zhao Fei decided to take him back to the police station to assist with the investigation.

The director stepped in to stop them, saying, "Don't do that!"

“Why not? We are on official business right now, Director. What you are doing is inappropriate,” Zhao Fei reminded him.

After hearing what Zhao Fei said, the director stopped trying to stop him and allowed Zhao Fei to leave the school with Ma Chang.

After being put into the car, Ma Chang said to Zhao Fei, "Captain Zhao, is this really the right thing to do? You'll be in an awkward situation if the murderer isn't me."

"What's wrong with that? If you're really not the murderer, I'll apologize to you, is that alright?" Zhao Fei said with a smile.

Helpless, Ma Chang fell silent.

After Ma Chang was taken to the interrogation room, Zhao Fei quietly asked Bai Mengfei and Xiang Yuntian for their opinions.

Xiang Yuntian said, "There are two possibilities: either this person is a highly skilled actor, or he is truly innocent."

Bai Mengfei said, "We didn't find any special traces at the school, but that's normal." After saying that, she added, reminding Zhao Fei, "If he really is the murderer and we were wrong, then you have to be extra careful. Given his personality, I think he might come after you."

Upon hearing Bai Mengfei's words, Zhao Fei couldn't help but grunt in response, momentarily speechless.

Bai Mengfei smiled to herself and turned to look at Xiang Yuntian.

Xiang Yuntian understood the meaning behind Bai Mengfei's gaze; she wanted him to look at Zhao Fei's expression. He smiled slightly as well.

After Zhao Fei went in for interrogation, Xiang Yuntian said to Bai Mengfei, "His expression just now, which was both frightened and trying to appear calm, really made me want to laugh."

“Me too, it’s hilarious! It’s the first time I’ve ever seen him make that expression,” Bai Mengfei said.

As they spoke, the two went to the monitoring room to watch Zhao Fei interrogate the suspect Ma Chang.

Ma Chang is a very stubborn suspect who always has an innocent look on his face.

However, Zhao Fei still asked according to the law: "Did you commit that crime?"

"What are you talking about? I don't understand what you're saying at all." Ma Chang put on a wronged look again.

Bai Mengfei watched this scene through the screen, turned to look at Xiang Yuntian, and asked in a low voice, "How likely do you think he is the murderer?"

"Those involved are often confused, while bystanders see things clearly." Xiang Yuntian said this, then pointed to the screen with his right hand and continued, "Judging from the current situation, I think there is a high probability that Ma Chang is lying."

"Really? How did you figure that out?" Bai Mengfei asked.

Xiang Yuntian pointed to Ma Chang's left hand and said, "Look at him, he keeps clenching his fist, and those fingers are rubbing together in his palm. If he wasn't feeling guilty, why would he do that?"

Bai Mengfei disagreed, saying, "But in my opinion, it's unlikely he's the murderer. He must be feeling very panicked and helpless right now, so fidgeting with his fingers is a normal reaction."

Xiang Yuntian raised his left hand, gently scratched his slightly itchy nose, and then said, "Let's observe it some more?"

Upon noticing this detail, Bai Mengfei immediately remarked, "I don't think psychology is absolutely accurate either."

"Huh?" Xiang Yuntian turned around abruptly, wanting to know why Bai Mengfei would say that.

Bai Mengfei analyzed, "The micro-expression theory in psychology seems to say that liars usually touch their noses. But you just touched your nose, so are you lying to me too?"

"What do you mean?" Xiang Yuntian smiled wryly. "I just felt a little itchy around my nose."

"Alright, I'm not teasing you anymore." Bai Mengfei was just joking, but she didn't expect Xiang Yuntian to be so nervous. "Let's continue watching the surveillance footage."

"Hmm." Xiang Yuntian nodded silently, then focused intently on watching.

At this moment, Bai Mengfei also noticed a detail: Ma Chang always blinked habitually, and the frequency of blinking was quite high.

She lowered her head, pondered for a moment, and then said, "Ma Chang's blinking frequency was normal when he was in school, so why is it so high now?"

Xiang Yuntian immediately replied, "Because he was nervous, it's very likely that he felt guilty."

Hearing Xiang Yuntian say this, Bai Mengfei frowned and asked in surprise, "But why would he feel guilty?"

Xiang Yuntian silently shook his head and continued staring at the screen.

Bai Mengfei pondered for a moment, then slowly let out a sigh of relief, suppressing her doubts, and continued watching the surveillance footage with Xiang Yuntian.

After watching for a while, they saw Zhao Fei and Ma Chang arguing, and Zhao Fei even tried to lock Ma Chang up.

"Oh no!" Xiang Yuntian stood up, intending to stop Zhao Fei.

Bai Mengfei immediately stood up and stopped him, saying, "Don't forget who we are now! Even if you are still a forensic doctor, you have no right to suddenly run in and stop his decision."

……