Chapter 786 Eight Immortals Crossing the Sea to Seek the Moon
Wang Shaodong has an aura of becoming more courageous with every setback, a clue, and he must tap into its potential.
The subsequent investigation work has been assigned.
Jiang Hao walked over and said to Wang Shaodong: "Don't rush to let go of the salesman just now. Bai Xiu said that there are other things happening to him, so you can interrogate him more!"
Bai Xiu, who was following Jiang Hao, was confused: When did I become so sure that something was wrong with him?
She remembered that she only said that the other party had this possibility at the time, but when it came to Jiang Hao's mouth, she became so sure.
At this time, she wanted to refute, but she had nothing to say!
"Okay, I'll talk to the people below and lock him up for 24 hours first. That guy is quite timid. He should be able to catch himself!"
In fact, Wang Shaodong also discovered that there was something wrong with the young man, but at that time, their focus was still on this case. Thinking about it afterwards, they felt something was wrong!
Now that Jiang Hao reminded him, he was even more convinced of what he had in mind.
After Bai Xiu saw Wang Shaodong leaving, he immediately thought that the tasks they had just arranged did not seem to have been assigned to himself and others, so he asked curiously:
"Team Leader Jiang, what should we do next?"
"We? Of course it's the Eight Immortals crossing the sea, each showing his magical powers!"
Hearing what Jiang Hao said, Bai Xiu suddenly became interested: "Do you already have an idea in your mind?"
Jiang Hao's lips twitched slightly, making no comment!
"Tell me, why are you selling it so hard?"
Bai Xiu bumped Jiang Hao's arm with her elbow. Although she admitted that Jiang Hao's mind was indeed spinning very fast, this pretentious attitude really made people want to beat him.
However, Jiang Hao's force value is too strong and he cannot beat him.
"Go and make a copy of Du Fang's address book and the communication records of the past three months. I want the data, but don't print it."
Jiang Hao didn't directly tell her what the method was, but first arranged for her to copy the address book.
"Communication records?"
"right!"
"oh."
Bai Xiu felt vaguely that she knew what Jiang Hao was going to do, so she didn't ask any more questions, but went directly to the technical department to get what she needed.
After a while, Bai Xiu got back a USB flash drive, on which she copied Du Fang's call records for the past three months.
"Du Fang is also very good at making phone calls. He has made nearly two thousand calls in three months, an average of twenty-two calls a day. Fortunately, what you want is data. If you print this out, how much paper will be wasted?
.”
After complaining, Bai Xiu said: "You mean, the murderer is hidden in these phone numbers?"
"You're making progress. It seems like you haven't spent all those days with me in vain." Jiang Hao glanced at Bai Xiu approvingly and continued:
"What Captain Wang just said is pretty good. The murderer is most likely a decoration, property or maintenance worker, and these low-level jobs fit exactly in line with the profile of the murderer you drew before.
From the previous clues, it can be inferred that although the murderer and the victim are not very familiar with each other, they should know each other. Judging from the fact that he can grasp the victim's movements every time, he should have followed and observed the victim for a period of time.
, so I guess there should be phone contact between them!"
"I see!"
After listening to Jiang Hao's analysis, Bai Xiu suddenly understood and his thoughts became clear instantly.
However, when she thought of so many phone calls, she felt a little scared: "With so many numbers, how long do we have to contact them?"
"Then do you know why I only asked you to copy the data?"
"Oh, I understand, you want to do data analysis?"
Seeing Jiang Hao nodded, Bai Xiu became even more excited: "You can also do data analysis? It's so awesome. I asked my senior brother to help me with the data analysis required for the papers I wrote before.
"
Gu Qi
Hearing what she said, Jiang Hao was confused:
Why are you telling me this?
Do you want me to help you write data analysis for your paper?
Beautiful thought!
In order to study the genes of corpse insects, he taught himself various formulas for data analysis during this period.
Compared with this, if you analyze the phone number, it is really easy to get it.
Jiang Hao didn't say anything, took the USB flash drive from Bai Xiu's hand, found a computer in the office, and started importing data.
As the saying goes: If a worker wants to do his job well, he must first sharpen his tools.
Jiang Hao is going to conduct data analysis on this address book first.
Eliminate irrelevant contact numbers and find useful information.
Classify the calls according to the number of calls, call duration, and call duration to find out the suspicious numbers, and then Bai Xiu will use these numbers to infer the identity information of the phone owner.
Eliminate irrelevant numbers such as gender and age.
In the end, after Jiang Hao's dazzling operations and thousands of communication records, only twenty-one phone numbers were left.
"Team Leader Jiang, you know too much!"
At this time, Bai Xiu really admired Jiang Hao. After just a few days of getting along with him, she found that her own psychology was somewhat incomprehensible to Jiang Hao.
We are exposed to it every day, but there is something new every day.
"How can we catch bad guys if we don't learn more? You know, criminals sometimes study harder than us. If we don't want to make progress, won't the social order be in chaos?"
When Bai Xiu heard it, it was indeed true!
"Then I'll contact them and screen their occupations!"
Thousands of communication records make people feel confused, but with twenty-one phone numbers, it is very simple to contact them. If you ask about their occupation, you can filter out a group of people.
Seeing Bai Xiu pick up the phone and prepare to make a call, Jiang Hao quickly stopped him:
"Wait a minute, don't alert the enemy yet. It would be bad if we alerted them and destroyed the evidence of the crime."
"Ah? What should we do?"
"By visiting on-site, we can find these people's addresses based on their household registration information, compare the murderer's crime radius, and filter out a group of people!"
"Yes, yes, this is a good idea!"
Bai Xiu nodded quickly, thinking that what he had just done was indeed a bit reckless and almost led to a mistake.
On the other hand, Jiang Hao's method of saving the country through curves is really experienced in actual combat!
After seeing Jiang Hao's various techniques and ideas for solving crimes, Bai Xiu knew that he had learned a lot, and now it was time to prove whether his method was effective.
Therefore, Bai Xiu was very motivated and found out the household registration information of these twenty-one people without Jiang Hao's instructions.
Jiang Hao didn't say he was watching, and let her do it alone. After all, twenty-one people didn't mean more, but less didn't mean too much.
It would be a waste of time to let her come alone.
Time is precious now, so any little you can save is worth it.
Later, Jiang Hao took out the map he drew that day and marked all the home addresses of these twenty-one people on the map.
Then find out whose addresses are within the crime radius.
It doesn't mean that the police's inference is necessarily correct, nor does it mean that the murderer must be within this radius. It just means that they screen based on their own judgment so that they can start the investigation first.