City: The opening scene of the crime scene

After watching the deduction scenes related to motorcyclists, Li Fan admired motorcyclists very much.

Of course, it wasn’t the number of heads that motorcyclists took that he admired.

What he admired was the motorcyclists' methods of committing crimes.

Using white phosphorus and bees to light fires is indeed a very clever method.

It's a pity that the perpetrator's good brain was not used in the correct and legal way.

As Li Fan had guessed before, the motorcyclist should have put flammable white phosphorus on the nectar in advance.

The bikers then caught some bees and let them suck the nectar, thereby carrying the white phosphorus in their mouthparts.

After the bees ingested the white phosphorus, the motorcyclists captured the bees.

Next, the motorcyclist prepared a bag with holes for ventilation and placed an ice-cold stick in the bag to lower the temperature inside the bag and prevent the white phosphorus from burning due to the temperature in the bag being too high.

After putting the bees into the bag, the motorcyclist began to take action.

He came to the place and released the bees near the truck driver's oil drum.

It just so happens that the sun's rays are very strong during this time.

The bees burned under the sunlight and ignited the oil drum, causing an explosion at the scene.

After figuring this out, new questions suddenly appeared in Li Fan's mind.

Is this case a gang crime?

Li Fan knew in his heart that he had only seen the deduction scenes related to the motorcyclists, so he didn't know exactly how the bees were caught or who caught them.

Just to make it easier for him to understand the case, he thought that the motorcyclists had caught the bees and hid white phosphorus in the bees.

However, in fact, he did not know whether other perpetrators helped in this step.

Therefore, Li Fan is still unable to judge whether there are other suspects in this case.

Judging from Li Fan's current inference, there should be other perpetrators.

After all, the oil drum explosion was just the prelude to this case.

This case is a ring theft.

What they, the detectives, want to figure out is the cause, process and consequences of the ring being stolen.

Through the process and results, they have heard some news from Dr. Mohn.

Among the information Dr. Mohn said, one of the key points is that many women's rings have been stolen.

Li Fan believed that it was impossible for just one person to steal so many rings during that chaotic period.

Thinking of this, Li Fan couldn't help but wonder, who called the call the truck driver received just now?

Obviously, the person who called the truck driver was also one of the murderers.

Without that person calling, the truck driver would not have stopped and unloaded some of the drums from the truck.

If the truck driver does not unload the drums, the bees cannot easily ignite the drums on the truck.

In this way, the perpetrator would not be able to successfully place the fuel barrel, causing an explosion.

This series of crimes were planned by the perpetrators in advance.

They expected that the truck driver would pass by with a load of oil barrels, so they got the truck driver's phone number in advance.

As the truck driver passed by, the perpetrator called his phone and asked him to stop.

Li Fan couldn't help but wonder, who was the person who called the truck driver?

Is it the motorcyclist, or is it someone else?

At this time, he asked the system:"System, can you help me use clues to identify the person who called the truck driver?"

"Report host is unable to lock the caller for you."

Hearing this, Li Fan couldn't help but feel confused.

"Why can't I lock it? When we cracked the death call case last time, didn't you help me easily identify the person who made the death call?"

In order to solve the host's doubts, the system began to patiently explain to Li Fan

"Report host, in the last death call case, the perpetrator used a pseudo base station to make the call. The call was made one-on-one, so the location of the other party could be locked through electromagnetic waves."

"However, this call was the process of a normal person making a call. It was not a pseudo base station, but a regular communication base station."

"When a normal person makes a phone call, the electromagnetic waves do not propagate one-to-one. Instead, the electromagnetic waves are transmitted to a regular communication base station. After some processing by the communication base station, the call is made to someone else."

"Therefore, the system cannot lock the location of the person who called the truck driver. The signal has been processed."

After listening to the system's explanation, Li Fan felt a little regretful.

As a result, it would take more time to find the perpetrator who called the truck driver.

At this time, he suddenly thought, is it possible to call the truck driver? Is the person who made the phone call the same person as the motorcyclist?

Although he believed that this was a gang crime, he felt that it was not impossible that the motorcyclist called the truck driver. If the driver calls, he can save some investigation steps and time.

For Li Fan, there are many ways to determine whether the motorcyclist called the truck driver.

Among them, he thought of a very simple one. method, but he didn’t know if it was feasible, so he asked the system:"System, can clue locking distinguish the timbres of two people?"