I'm in a mental hospital, Bai Fumei forces me to be her boyfriend

Ren Han's rhetorical question made Wang Ze's eyes flash with light.

It seems.

The possibility he guessed was correct.

There is no such thing as hired murder.

There is no such thing as cooperative killing.

This is a very rare and very difficult to investigate exchange homicide case.

Exchange killing, as the name suggests, means exchanging killings of the people each other wants to kill.

Shang Xiaofan, kill the person Cao Qian wants to kill.

Cao Qian, kill the person Shang Xiaofan wants to kill.

It can be said that there is no connection between the murderer and the deceased.

Moreover, the killing time will not be on the same day.

In this case, everyone has a very strong alibi.

As long as no evidence is left at the scene, it can be said to be extremely difficult to get to the bottom of the case.

If it weren't for Wang Ze's vast experience in crime simulation and his bold inferences, he might not have thought of it.

Again.

In this world, anything can happen.

Swap killing is already a rather bizarre type of case.

"When did the case occur?"

Wang Ze asked with a calm voice.

Ren Han:"It was a week ago."

Wang Ze:"How is the investigation going?"

Ren Han was silent for a while and said:"At present, we have reached a deadlock."

"All those with motive for murder have sufficient alibi.

Wang Ze:"Is the person most suspicious of a woman?" Ren Han was a little surprised this time:"

Captain Wang, what do you know?""

"what's the situation?

Wang Ze did not answer and continued:"Cao Qian?""

Ren Han:"……"

"Captain Wang, do we have your undercover agent here in Rongcheng?!"

He raised his voice, obviously very surprised.

Cases in each city are generally investigated by the municipal bureau of the respective city.

Other criminal investigation teams will not intervene unless they encounter relevant clues and need to assist in the investigation.

He is very Definitely, this case has nothing to do with Yuncheng.

Although Cao Qian knows a few people in Yuncheng, this is a very normal thing and there is no doubt about it.

Wang Ze said directly:"Team Ren, control Cao Qian , we will meet in Rongcheng in two hours."

Ren Han:"What do you mean? Is she the murderer of your murder case?"

Wang Ze:"Yes, we'll talk about it when the time comes."

Ren Han:"Okay, I understand."

Hang up the phone.

At this time, the case handling hall fell into silence.

Everyone is looking at Wang Ze.

As criminal police officers, of course they understood what Wang Ze meant.

There was also a murder in Rongcheng?

Cao Qian is a major suspect?

Two murder cases happened recently, and the suspects are one is Shang Xiaofan and the other is Cao Qian?

The result seems obvious.

Li Xiangbin's face trembled and he said,"Exchange of killings?"

Wang Ze nodded:"It should be"

"Let's go to Rongcheng"

"Wang Xiaotong and Ma Haoyu followed, and others were optimistic about Shang Xiaofan."

"If there are any signs that he intends to leave Yuncheng, arrest him immediately."

Police officers:"Yes!""

……

Soon, after the two communicated with Liu Guanghai, a car quickly left the city bureau and headed for the highway leading to Rongcheng. inside the car.

Ma Haoyu was driving, and Wang Xiaotong was sitting in the passenger seat.

In the back seat, Wang Ze and Li Xiangbin were chatting.

"How do you think it was an exchange of killings?

Li Xiangbin spoke. Wang Zedao:"

It's actually very simple. It's nothing more than elimination.""

"After ruling out hired murder and cooperation in killing, there are very few possibilities left."

"But there is a prerequisite: there must be reasonable suspicion that Shang Xiaofan is suspected of committing a major crime."

Li Xiangbin was silent.

The elimination method is simple.

However, this premise is a bit difficult.

Before, he really did not put his suspicious eyes on Shang Xiaofan. (To read Baoshuang novels, go to Feilu Novel Network!)

One reason is that not Proof of presence.

One reason is the identity of the other party and the deceased's immediate family.

These two reasons are enough for most criminal police officers not to pay too much attention to Shang Xiaofan.

Originally, it is unlikely that a son would kill his father. In addition, The alibi is sufficient.

It would just be a waste of time to check again.[]

But I didn't expect that the result would be like this.

Although there is no evidence yet, the existing clues are already obvious

"Does Ren Han also have a headache now?

Li Xiangbin asked with a smile.

Wang Zedao:"That's right.""

"Cao Qian is the person he has the most suspicion of committing the crime, but the other party has sufficient alibi."

"He had no choice but to investigate other people with motive for committing the crime."

"The result can be imagined."

The murderer was eliminated as a suspect for the first time.

For criminal investigation, this should be the biggest helplessness.

Let alone Rongcheng.

The same is true for Yuncheng.

Li Xiangbin also eliminated Shang Xiaofan's suspicion for the first time.

This This is the importance of alibi.

Looking at the history of murder cases, 99% or even a larger proportion of cases are committed by the suspects themselves.

Hiring murderers is very rare.

Because there is no way.

The killer is These two words are too far away for ordinary people.

They can't find them even if they want to look for them.

Therefore, based on their mindset, the investigators will not be particularly suspicious of people who have alibi.

This makes Shang Xiaofan and Cao Qian, took advantage of the loophole.

Generally speaking, the probability of exchange homicide occurring is very small.

It can be calculated using mathematical probability.

First of all, the probability of someone having murderous thoughts and preparing to commit murderous behavior is already very small.

There are two, The probability is even smaller when multiplied by two.

Then these two people with a small probability met together by coincidence.

Then, they actually talked about each other's intention to kill someone.

In the end, they reached a consensus, exchanged killings, and took action. Success Committing a crime.

This series of events has reduced the probability of exchange murder to an extremely low level.

Therefore, unless it is at the end of the case, no investigator will immediately think of exchange murder.

Including Wang Ze.

This is also true. (Good Li Zhao).

At first, he didn’t make any inferences in this regard.

Li Xiangbin said:"So, we are giving help in times of need? Wang Ze chuckled:"

A win-win situation.""

It's a good thing to solve two murder cases with one clue.

At this time, Wang Xiaotong turned around and said:"Team Wang, Shang Xiaofan has fallen into your trap."

"If we investigate by ourselves, it may be difficult to find Cao Qian in a short time.

Wang Zedao:"It's just a guilty conscience."

Wang Xiaotong:"I'm very curious about what he and Cao Qian talked about last night."

Li Xiangbin said:"If it were me, I would tell Cao Qian that we were in a dangerous situation, immediately interrupt contact, delete all records, and pretend that we have never met." Wang Ze nodded:"

It's more reliable.""

The content of the call is not important.

What is important is who Shang Xiaofan called.

During the chat, the vehicle quickly disappeared at the end of the road.

Two hours later, Rongcheng arrived

……