Guan Feng carefully opened another window, climbed out, squatted down, and carefully examined the surrounding environment.

The entire building.

The cement ground extends out about half a meter.

Beyond that is a mud garden.

As far as the eye can see.

On the soil right next to the cement ground, half a footprint is clearly visible.

Guan Feng only needed one glance to determine that these were fresh footprints.

Nothing more!

It rained yesterday.

If you had stayed before that.

Rainwater will wash away the muddy marks.

But the footprints in front of me are clearly visible.

It was clearly left after the rain.

This is relevant to the timing of the cash theft.

Guan Feng squatted down and began to examine the footprint.

Gradually.

An image formed in my mind.

......

Ten minutes later.

Guan Feng pointed to the half-foot print on the ground and asked, "Wang Xun! Do you recognize the pattern of this shoe print?"

Wang Xun squatted down, examined them carefully for a moment, and said, "They seem to be the kind of work shoes we wore when we were kids? I remember they were military green or khaki. Back then, if a family had a pair, they would treasure them like treasures, the kind that would never wear out!"

He paused for a moment.

His gaze suddenly fell on the security guards not far away, and he looked somewhat surprised and uncertain.

Seeing that he had come to his senses, Guan Feng patted him on the shoulder and whispered, "Go and call the security manager over here first."

Wang Xun nodded.

A moment later.

The security manager walked over.

"Officer Guan, you wanted to see me?"

Guan Feng asked, "Where do these security guards usually live?"

The security manager replied, "Them? Because we work 24-hour shifts! We work 15 days on and 15 days off. When they're working, they treat the factory as their home, eating and sleeping at the company, and usually living in the dormitory."

Guan Feng asked, "Do you have any security guards who wear size 44 shoes?"

The security manager said, "There should be, but it's hard to say for sure right now. Should I go back and check?"

Guan Feng stopped him and said, "Our people are with you, and this matter must be kept secret."

The security manager hurriedly replied, "Okay! Okay!"

......

Ten minutes later.

The security manager rushed back, accompanied by Wang Xun.

"Officer Guan! Someone has lost a pair of work shoes, size 44. He's coming right away."

Guan Feng asked, "Does anyone else know?"

The security manager quickly shook his head: "I went to check myself, and no one dared to say anything. Your Officer Wang was with me the whole time."

Guan Feng glanced at Wang Xun and nodded, saying, "That's good!"

Wang Xun asked with a surprised look, "Team leader, how did you deduce that the shoes were lost?"

Guan Feng pointed to the marks on the ground and said, "This half-foot mark is the mark left by the work shoes. You've seen a small horse pulling a large cart, right? Generally speaking, people can wear shoes one or two sizes too big, but if they don't fit properly, both walking posture and footprints will show."

Wang Xun suddenly realized: "It has to be the team leader!"

Guan Feng waved his hand and said, "Don't rush to flatter me! The most important thing right now is to find these shoes. I think we should talk to Captain Zheng and see if we can get in touch with the police dog team. We need to find these shoes by focusing on the administration building and the dormitory!"

Wang Xun immediately replied, "Alright! I'll contact Captain Zheng right away."

......

at the same time.

The technical department also extracted footprints.

Chen Xuewen handed two documents to Guan Feng:

"Team Leader Guan, these are the footprints we found on top of the counter in the finance office. Take a look!"

Guan Feng took it and said with a smile, "Thank you, Captain Chen. But Captain Chen, I'll have to trouble you a little more. There's half a footprint here, which is very likely left by the suspect. Do you think we can preserve it?"

Chen Xuewen said, "Okay! I'll come and take a look."

Guan Feng's security room was temporarily requisitioned.

Sit down.

Carefully compare these two sets of data.

Footprint length...

The pattern on the sole...

The stress coefficients of soil and dust...

Crane foot...

One data point after another was displayed.

It automatically splices and combines data in Guan Feng's mind.

Twenty minutes later.

Guan Feng put down the photo.

"Captain Zheng, when did you arrive?"

He was about to speak when he noticed that Zheng Yuandong was also there.

Zheng Yuandong laughed and said, "When I heard from Inspector Wang that the police dog team would be needed, I knew you were making progress!"

Guan Feng carefully chose his words and said, "At present, it's only a probability!"

Zheng Yuandong laughed and said, "You're just being modest! You met with Wang Qiankun before you came here, and that old guy praised you to the skies. He said you tamed the foreigner with just a few words!"

Guan Feng said, "Captain, that was just a coincidence!"

Zheng Yuandong waved his hand and said, "Alright, don't be modest. I just came to take a look. I've also borrowed the police dog. How do you want to use it? I'll go back and work on other cases first."

Guan Feng nodded and saw Zheng Yuandong off.

He returned a moment later and said to the group, "By comparing the footprints, the suspect outside the computer room and the person entering and leaving the finance office are indeed the same person. The suspect should be a male, about 178 cm tall, weighing around 150 catties, and about 25 years old. Everyone, investigate in this direction."

The words had barely left his mouth.

Huang Lili asked in surprise, "Xiang Dong, isn't this the guy we just took a statement from?"

Li Xiangdong nodded and said, "Yes!"