The performance of the police officers in Qinghe City was similar to that of Wei Zhenguo.

When they heard that a monkey was lost, they laughed. When they heard that the monkey was worth 150,000, they started shouting.

Just like monkeys.

However, despite the high value of the case, it was still a theft case, and the police officers who came were still from the district bureau.

A total of four people, including the trace inspector Cao Keyang who was invited from the municipal bureau.

Cao Keyang came over on his own initiative.

A few days ago, the case of Jianyuan Company, Cao Keyang regretted not being able to participate because he was working on another case.

This time, when the criminal police in the district called, he came over immediately.

The main investigative force of the Qinghe City Bureau has all been transferred to the district and county. However, unlike the county bureau, there are fewer technical positions, including trace inspection and forensic positions, and most of the time they are borrowed from the municipal bureau.

Anyway, the technical staff of the municipal bureau also have to go to the rural areas, so it doesn't matter who uses them. It's even more convenient for the district bureau to use them. And it saves money.

When Cao Keyang arrived at Qinghe College and saw Jiang Yuan, he immediately asked, "Is someone dead?"

This "someone" was quite eye-catching.

Cao Keyang's thoughts were quite simple. Jiang Yuan's case at Jianyuan Company a few days ago started with a theft, and then two people died in succession, the son of the chairman of Jianyuan Company and his boyfriend.

If Jianyuan Company is the peak of the private economy in Qinghe City, then the peak of the academic world is Qinghe College.

Although it is only a college, Qinghe College has a history of more than fifty years, and the administrative level of the president is very high.

Cao Keyang, as a logical trace inspector, subconsciously speculated that Jiang Yuan had foresight, which was also quite reasonable.

For example, it was quite reasonable for someone to die on the eve of the company's listing.

Naturally, it could be inferred that someone dying at Qinghe College was not surprising.

Cao Keyang's expression was a bit too expectant, which made Jiang Yuan smile and shake his head.

It was just four monkeys that were lost, nothing to do with dead people.

Valuable monkeys were still just monkeys.

But in Cao Keyang's eyes, this smile was quite intriguing.

"I understand, let the evidence speak." Cao Keyang said.

This statement was natural.

Although Jiang Yuan looked at Cao Keyang's expression and felt that something was off, he still said, "Anyway, let's take a look at the scene first."

Cao Keyang agreed repeatedly and then followed the other police officers into the animal medical building.

Jiang Yuan put on a white coat and followed them in.

All the monkeys at Qinghe College were kept in one room, and now the iron cages were empty. Judging from the condition of the locks, they should have been cut directly with hydraulic pliers.

Cao Keyang took two photos, and in such a situation, it usually proved that an outsider committed the crime. Insiders generally wouldn't bring in hydraulic pliers to tamper with the evidence, as it would be easy to notice.

Of course, this was a general situation.

The monkey house was kept quite clean, and Cao Keyang looked around and found a camera. He asked outside the door, "Is there any footage?"

"It's broken," said the young teacher in charge of the monkey house, looking a bit dazed.

"When did it break?"

"It broke a year or two ago, it was reported, but it hasn't been fixed." The young teacher replied.

The monkey house was a small space, and it was a bit uncomfortable to have a camera pointing at it, so it was understandable that the motivation to repair it was not high.

Jiang Yuan then looked down at the ground.

The tables and chairs had been moved, and there were some marks on the floor, making it look quite messy.

Because it was an indoor environment, the footprints on the floor were not well-defined.

There were a few half-footprints, probably stepping on food that had fallen to the ground, leaving a few faint patterns, but the information they could provide was very limited.

Cao Keyang turned to look at Jiang Yuan, and when he saw that he didn't react, he said to the other criminal police who had come with him, "You guys go check the surveillance, I'll scan for fingerprints here and see if there's any breakthrough."

When a trace inspector speaks to a colleague like this, it's like a man saying to a woman, "Wait, I'll take a pill." There's no need to be ashamed, because it's already a habit.

But it's not worth being proud of either.

It's just an ordinary day.

Outside the door.

The police officers were also actively taking statements.

The one who was questioned the longest was the teacher in charge of the monkey house, who was also the one who reported the case.

He was very cooperative, answering all the questions, and when the statement was finished, he asked, "When can the monkeys be found?"

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"It's hard to say." The criminal police officer was also in a dilemma. How could they guarantee solving the case?

The teacher in charge of the monkey house looked at him blankly and said, "This is my graduation thesis."

"Huh, aren't you a teacher?"

"I'm doing my Ph.D. at Agricultural University, and I'm working here." The teacher in charge of the monkey house murmured, "It's been three years."

"What does the monkey have to do with your graduation thesis?"

"My graduation thesis is about the breeding of rhesus monkeys..."

The criminal police officer made a few notes in his notebook and said, "You work at Qinghe College, you're doing a Ph.D. at Agricultural University, and you're using the public monkeys to write your own graduation thesis?"Teacher Hou thought for a moment and said, "It's about like this."

"It's still you intellectuals who can handle these things." The detective clicked his tongue and reopened the record, saying, "In your field of study, have you offended anyone..."

"No."

"In other aspects, have you offended anyone?"

Teacher Hou said irritably, "No! I'm a researcher. Where would I offend anyone?"

The detective emphasized, "Under normal circumstances, people from outside wouldn't come to steal your monkeys with hydraulic pliers. Think carefully, have you had any conflicts with anyone recently? Have you met strange people, encountered strange things, or heard strange words?"

"Why do you have to keep asking me?" Teacher Hou said discontentedly. "It's obvious that someone came to steal the monkeys just to steal the monkeys."

The detective looked at Teacher Hou sternly and said, "We will definitely investigate the monkey theft as well. But on your end, we need to ask you to find out, right? You tell us what you know, and don't worry about how we investigate!"

The tone here was a bit heavier, and Teacher Hou couldn't hold back, so he could only lower his head and think. After a while, he said, "If you must know, the only thing that's happened recently is that I've received several phone calls from people wanting to buy monkeys, and they offered a high price. But my monkey has its own mission and definitely can't be sold to them..."

The detective frantically took notes.

Jiang Yuan looked around the scene, focusing on taking photos of the footprints on the ground. He also discovered a trace of fiber at a corner of a table, carefully collecting it in an evidence bag, and then quietly left the scene.

The fiber could have been left by a student or teacher from the school, or it could have been left by the thief. Jiang Yuan judged with the naked eye that the most relevant possibility to the case was that the thief used a bag similar to a burlap sack to carry the monkey, hung the bag on the corner of the table, and left behind a bit of fiber.

If this were a homicide case, this bit of fiber material would already be treated as a lead to be investigated. But because it was a theft case, it would be good enough if it could be used as evidence. If they followed this lead directly, the level of difficulty would be slightly higher, and it would only be considered if other leads didn't yield results.

After leaving the scene, Jiang Yuan followed Wei Zhenguo to review the surveillance footage.

Investigating a theft scene was just as time-consuming as investigating a homicide scene. If they wanted to do a thorough search, it would take several hours. And it would also be physically exhausting.

Today's case wasn't Jiang Yuan's case, so he didn't have the authority to thoroughly search the scene.

Jiang Yuan also wasn't interested in searching the scene.

There were limits to manpower, and if they had to take on every case they encountered, they would exhaust themselves and possibly offend people.

Even if Cao Keyang had a very good attitude, he might not be willing to be directed by Jiang Yuan.

The surveillance at Qinghe University was extensive, and there was a dedicated surveillance room.

Zeng Zhuohu and several students were also curious and followed closely behind Jiang Yuan, sneaking in with him.

The management of Qinghe University was so-so. When they saw that there were a lot of people coming, they simply stopped paying attention and only allowed them to view one monitor.

The responsible detective didn't sit down and instead found a staff member to help them review the surveillance videos one by one.

At this point, the advantage of having numerous surveillance cameras at Qinghe University became apparent. Because there were too many surveillance videos and too few people to watch them, the viewers were exhausted.

The detective wasn't a professional surveillance expert, and it was difficult for him to find the key positions after finding the initial ones.

In several surveillance videos, the figures of the thieves could be seen, a man and a woman dragging two suitcases, but their faces couldn't be clearly seen, and their identities couldn't be confirmed. The most difficult part was that just when they were about to follow the thieves, they lost track of them.

Several students became bored after watching for a while. One of the girls approached Jiang Yuan and said softly, "Is this how you usually watch surveillance footage?"

"More or less. Watching surveillance footage is quite boring." Jiang Yuan recalled the work of the surveillance experts and felt the same way.

Although surveillance experts were now highly regarded in the criminal science field, often being associated with big data and the like, in terms of operational level, it was more like having big eyes...

In the surveillance mode of Qinghe University, the surveillance room looked nice, but half of the surveillance was in real-time, only used for taking news photos and external publicity, with short storage time and an imperfect loop recording mechanism...

As the saying goes, if there were a death or two at Qinghe University, these surveillance videos would be invaluable.

But if it was just a monkey theft, these surveillance videos were just a waste for the surveillance experts.

The nearby female student naturally didn't understand Jiang Yuan's feelings and moved closer, whispering, "Actually, if there were more equipment, we could help watch..."

"It's not necessary." Jiang Yuan had changed his train of thought by now and cleared his throat, saying, "Let's just watch the walls of the campus. If there's no video of them leaving through the exit, then they must have gone over the wall."

"It's not easy to climb over the wall. Four monkeys seem quite heavy," the responsible detective said."It's about 10 jin in weight," Zeng Zhuohu explained to those present.

"The suitcase itself has some heft too. Pushing it is fine, but climbing over the wall with it must be tiring, right?" The detective in charge pointed to a screenshot from an earlier video.

The two thieves were pushing a large and a small suitcase, which obviously weren't very light.

If they were to climb over the wall, the suitcase would actually be a nuisance.

"Maybe they crawled out through a hole in the wall," said someone with an evidently aged voice.

People turned in surprise, and one immediately stood up straight and called out, "Principal."

"Principal Heng," Zeng Zhuohu also greeted.

Principal Heng Wenxuan of Qinghe Academy nodded with a smile, then specifically greeted the police officers, saying, "Thank you for your hard work. I heard you discussing the case just now and couldn't help but want to say something. Ah, there are several holes dug in the school's walls, which actually allow for entry and exit."

"Then let's check the surveillance footage," the detective in charge immediately said.

The surveillance room staff said with difficulty, "The camera over there broke as soon as it was installed, and we haven't replaced it recently."

"Hmm..." The detective frowned.

"There is surveillance in the small restaurant across from the hole," the principal said with a smile. "It's positioned right at the entrance of the hole."

Due to the lack of medication, I went through the full process of a fever, which personally felt like going from being cold, to being hot, then to sweating, the whole set. I felt conscious throughout, but now I seem to be drowsy. Overall, it's not too bad; after the fever subsided, my toothache lessened, just a dull pain remained, followed by a stuffy head like cold symptoms for two days. Today I feel better, the swelling seems to have gone down, and I heard we're lifting the lockdown. I'll try to make a trip to the hospital tomorrow...