I slept with my sister's classmate, and she turned out to be my boss.

Monday morning.

Hu Yuheng is looking at a restructuring file of the state-owned enterprise where Liu Yuanzhou works.

A knock came at the door.

Without looking up, she called out, "Come in."

The door was pushed open, and a colleague from the technical department stood in the doorway, holding a manila envelope:

"Director Hu, Qian Yongming's call records have been compiled."

Hu Yuheng glanced at him:

"Put it on the table."

"OK."

The person put it down and left.

Hu Yuheng did not open it immediately. He first finished reading the page of the file in his hand before picking up the envelope and pulling out a few pages of paper inside.

The call logs are arranged in chronological order.

Every call made and received in the past three months is listed above.

She flipped to the first page, quickly scanned it, and then flipped to the second page.

His gaze lingered on a certain date for a moment—

That was about a week before Zhou Haibo joined the special task force.

She continued reading, her finger slowly gliding over the lines of text:

Date, time, call duration, and the other party's number.

All three calls took place within the same week.

The first time lasted more than five minutes, the second time was close to seven minutes, and the third time was nearly eight minutes.

The intervals between calls were irregular, but the frequency was unusually concentrated within that week.

The timing was right around the time when Zhou Haibo's transfer approval materials were transferred to the case management office.

She put down her notes, picked up the landline on the table, and dialed the technical department's number:

"This is Hu Yuheng. Can you find the real-name registration information for that Beijing number in Qian Yongming's call log?"

There was a two-second silence on the other end of the phone:

"I checked, there is no real-name registration."

The number is a prepaid card and is not linked to any identity information.

Base station location data shows that the receiving end of all three calls was within the Chaoyang District of Beijing, which overlaps with, but is not entirely the same as, the coverage area of ​​the base station where Zeng Zhiyuan lived.

The distance is approximately one kilometer.

Hu Yuheng held the microphone but did not answer immediately.

The prepaid card was not registered under a real name, and the base station location was near Zeng Zhiyuan's residence but not completely overlapping with it.

If Chien Yung-ming was directly contacting Wei Yuan or Tseng Chih-yuan, the signal should have appeared within the coverage area of ​​the same base station, not "within one kilometer."

This one-kilometer deviation suggests that the other party may not have been at Zeng Zhiyuan's residence when the call took place, but rather in another location nearby.

For example: in a car, in a teahouse, or at a random meeting place.

"Is it possible to find out the call patterns of that number? What times is it turned on, and which numbers does it contact?"

"It's being organized."

Current data shows that the number is turned on very infrequently, only briefly before and after calls, and is usually switched off.

In the past three months, in addition to three phone calls with Qian Yongming, he also contacted another local number in the provincial capital twice.

That number was also a prepaid SIM card and wasn't registered under a real name.

Hu Yuheng noted down this information:

"Check the cell tower location of that number in the provincial capital."

"We're already investigating. Current data shows that the number's activity area is in the provincial capital's development zone area."

After hanging up the phone, Hu Yuheng wrote a line in his notebook:

"Beijing number - prepaid - unregistered - located near Zeng Zhiyuan's residence (deviation of one kilometer)."

She added another line below:

The provincial capital's development zone phone number is prepaid, unregistered, and has two connections to a Beijing phone number.

Then, she closed her notebook, picked up the call log, and walked out of the office.

……

Chen Dapeng is compiling materials about Zhao Zhengping's recent activities.

Hu Yuheng walked over and spoke directly:

"Qian Yongming's call records have been checked."

A week before Zhou Haibo joined the crew, he had three phone calls with a Beijing number.

That number was not registered under a real name. The base station location was near Zeng Zhiyuan's residence, but not completely overlapping; there was a difference of about one kilometer.

In addition, this Beijing number was also contacted twice by a number in the provincial capital's development zone.

That number was also a prepaid SIM card and wasn't registered under a real name.

After listening, Chen Dapeng put down his pen:

"Before signing Zhou Haibo's approval documents, Qian Yongming contacted Beijing first, and then confirmed something through the provincial capital's development zone number."

He paused for a moment, then analyzed:

"Qian Yongming did not contact Wei Yuan directly—there was another intermediary."

Hu Yuheng nodded:

You're right.

The number in Beijing should belong to Wei Yuan, but Wei Yuan was not at Zeng Zhiyuan's residence when he made the call; he was somewhere else nearby.

This shows that he was also deliberately avoiding direct association.

That number in the provincial capital's development zone belongs to someone else; they're relaying messages between Wei Yuan and Qian Yongming.

Chen Dapeng thought for a moment and then replied:

"The activity area of ​​that number in the development zone is in the development zone area. It may be related to the office building where the box of documents Gu Xinming mentioned is located, or it may be related to a certain part of the project in the provincial capital."

Hu Yuheng didn't respond, remaining silent for a moment before speaking:

"You continue organizing Zhao Zhengping's materials. I'll arrange for someone to follow up on the development zone line."

Chen Dapeng nodded and didn't ask any more questions.

After returning to his office, Hu Yuheng made a phone call to the technical department:

"Check the base station location data of that number in the development zone for the past three months and cross-reference it with the coordinates of the office building Gu Xinming mentioned. If there is any overlap in time, notify me."

"it is good."

After hanging up the phone, Hu Yuheng leaned back in his chair and stared at the call log on the table.

She recalled Zhou Haibo's words: "Wei Yuan has old connections in the provincial capital."

In retrospect, this "old relationship" includes, but is not limited to, Qian Yongcheng alone.

The user of that development zone number should also be a link in this network, someone the task force hadn't noticed before.

She looked down and circled the line "Provincial Capital Development Zone Number" on the record, and put a question mark next to it.

……

Before leaving get off work, the technical department called:

"Director Hu, we have compared the location trajectory of the base station of that number in the development zone with the coordinates of that office building. There were four overlaps in time, each between 3 pm and 5 pm."

In addition, this number was also contacted twice by a local landline number in the provincial capital.

The landline was registered under the name of a consulting service company in the development zone.

Who is the legal representative of that consulting firm?

"Her name is Liu Guixiang. We checked her background and found she's a distant relative of Qian Yongming."

Hu Yuheng held the microphone but did not speak immediately.

Qian Yongcheng's distant relative runs a consulting firm in the development zone.

The company's landline contacted that prepaid mobile number twice.

That phone number had been contacted twice with an unregistered number in Beijing.

This line of thought begins with Qian Yongming.

After passing through Beijing, I returned to the provincial capital and circled around the development zone.

Ultimately, it returned to the name of Qian Yongming's distant relative.

"Continue to investigate Liu Guixiang's information, including the registration date, business scope, and bank statements of that consulting company."

"Okay, Director Hu."

After hanging up the phone, Hu Yuheng remained seated in his chair.

She mentally went through the flow of this thread again—

The Beijing number belonged to Wei Yuan (Zhou Haibo had confessed that Wei Yuan was his middleman).

The phone number for the provincial capital development zone belongs to Liu Guixiang, who is a distant relative of Qian Yongcheng.

All of this information combined suggests that Wei Yuan in the capital did not complete his mission by directly contacting Qian Yongcheng.

He took a more circuitous route—

First, contact the intermediary in the provincial capital's development zone, and then the intermediary will contact Qian Yongcheng.

This method of operation meant that there were no direct call records between Qian Yongcheng and Wei Yuan. Even if the call records were retrieved, it could only be found that Qian Yongcheng contacted the intermediary in the development zone, and the intermediary contacted the capital.

Each floor is a separate call.

There is no direct line connecting Qian Yongcheng and Wei Yuan.

Hu Yuheng picked up a pen and drew a line in his notebook:

Qian Yongming → Development Zone (Liu Guixiang) → Beijing (Wei Yuan).

Then she drew a circle in the middle and wrote a few words next to it:

"The length of the chain that can be seen at present—Qian Yongcheng can only see up to the development zone."

She closed her notebook, stood up, and walked to the window.

She thought to herself: Zeng Zhiyuan's network in the provincial capital is more complicated than she had imagined.

Zhou Haibo's arrest only opened the first crack in the fire.

There are still many more steps that need to be verified one by one.

She couldn't help but sigh:

"The scope of the case is expanding, and closing it is a long and arduous task..."