In the mountains, deep in the forest.

A search team of up to dozens of people, consisting of the Osaka Prefectural Police Headquarters Search Division 1, the Identification Division, and the local scenic police station, is busy searching for the whereabouts of the bear in this mountain forest that no one seems to have ever set foot in.

This team looks mighty and has plenty of police.

But letting these dozens of people submerge into the wild mountains and forests is like throwing a handful of sand into the vast sea, and soon disappearing.

At first, the police dog can show you the way.

But once you enter the daily activity area that brown bears often hang out, the dog's nose is not good.

Because the forest was full of bears and the smell of bears.

Sometimes everyone excitedly followed the running police dogs, sweating and panting in the mountains and forests, but in the end they could only be led by the dogs to find a piece of stinking bear.

"The brown bear's den should be around here, so it's hard to rely on police dogs here."

"Everyone scattered and searched, paying attention to always holding guns and maintaining communication."

It seems that if it drags on like this, it may drag on until the sun sets.

The police officer of the First Search Division of the Osaka Prefectural Police Headquarters, who was temporarily in charge of leading the team, suddenly changed his search strategy and adopted the method of dispersing and pulling nets to expand the scope of the search.

"I have to keep looking..."

"When will you have to search such a large forest?"

Director Tsunoda grumbled and almost put the depression on his face.

He also scolded in front of his subordinates and said:

"Tell me, what's going on in the mind of Managing Officer Lin?"

"For no reason we came here to find the bear..."

"What can you do if you find a bear, can a bear talk?!"

Director Tsunoda's complaint won the nods of his subordinates.

Everyone was very dissatisfied with Lin Xinyi's arrangement.

But no matter how dissatisfied they are, they can't help it.

The superiors have spoken, and they can only honestly cooperate with the search.

Like the others, Director Tsunoda broke away from the main unit and followed the command of a senior police officer to search in the direction he had been assigned to be responsible.

Walking alone in the mountains and forests, his subordinates are not around, and no one talks to him.

Director Tsunoda, who was broken-mouthed, was a lot quieter.

And at this moment...

"Of course the bear can't speak."

"But it can help us find the killer."

Lin Xinyi's voice suddenly sounded behind him, and it made Director Tsunoda's scalp tingle with horror.

It's like being quietly touched behind by the head teacher when I was playing with my mobile phone in self-study at night...

He turned his head in disbelief, only to realize that the leader he had just named and insulted had been smiling and following him.

I don't know how long I've been following.

In this silent and uninhabited mountain forest, this scene even seems a little terrifying.

"Ahem... Supervisor Lin, why are you here? ”

Director Tsunoda's expression couldn't help but be a little embarrassed.

"I've just examined the bodies that were brought up from the bottom of the cliff and finished writing the autopsy report, so there's nothing to do."

"I heard that this area is very close to the brown bear's den, so I wanted to rush over and have a look."

"It just so happens that I also have something to ask Director Tsunoda to understand the situation."

Lin Xinyi said what he meant.

"Oh... That's right. Director Kakuda asked stupidly, "Managing Officer Nalin, what do you want to know about the situation?" ”

"We'll talk as we go."

Lin Xinyi was not in a hurry to ask.

He and Mr. Tsunoda continue to move forward, searching for the whereabouts of the brown bear.

Like chatting with his companions while walking, Lin Xinyi asked Director Kakuda in a calm tone as he walked:

"Mr. Tsunoda, I would like to ask:"

"From noon to afternoon yesterday, during this time, did any of you in the police station go out alone and do not work in the station?"

"......" Director Tsunoda was silent for a while.

He held back for a while before he held back three words with an embarrassed face: "I don't know." ”

"Don't know?" Lin Xinyi frowned quietly: "There are a total of more than ten people in your police station, you are the director, why don't you even know if there is anyone in the station?" ”

"I didn't, I didn't notice..."

Director Tsunoda replied stubbornly.

But seeing Lin Xinyi's more serious gaze, he changed his words nervously:

"Well... I don't know because I left work early. ”

"You leave work early at noon?"

Lin Xinyi went home from work early every day a few days ago to accompany his girlfriend, and he was not embarrassed to skip work all afternoon.

And Mr. Tsunoda... The fish has also gone too far.

"yes," said Tsunoda, a little embarrassed, "There was a ball game yesterday afternoon, so I—I went back from work early to watch it." ”

"Watching a football game? I can't see it in the office, so I have to go home to see it? ”

"I'm also the director, and watching a ball game in the office has a bad impact..."

"......" Lin Xinyi was silent for a while: "I didn't expect that you would pay attention to maintaining police discipline and police style." ”

"Ahem..."

"Anyway, from noon to afternoon yesterday, I was drinking and watching the football game at home all the time."

"You'll have to ask other people what happened during that time."

Director Tsunoda gritted his teeth and simply put on the appearance of a dead pig who was not afraid of boiling water.

And it wasn't until then that he realized the taste:

"That's right..."

"Supervisor Lin, why are you asking this?"

"Does this case still have anything to do with the people in us?"

"Quite possibly." Lin Xin replied unequivocally.

As he spoke, ignoring Director Tsunoda's shocked expression, he spoke out his previous reasoning and discoveries.

"No, it won't..."

Director Tsunoda's expression was very unnatural:

"Supervisor Lin, do you suspect that the previous 7 accidents were not accidents?"

"And it's very likely that the murderer is hiding in our police station?"

"No kidding... It's nothing short of whimsical. ”

"Whether it's whimsical or not, we'll find out soon." Lin Xinyi's tone was very calm: "I just said that Xiong can help us find the murderer." ”

"Because all we have to do is find the bear that was shot, we can extract the bullet from its wound."

"And Mr. Tsunoda, you've probably heard of it..."

"Because of the relationship between manufacturing accuracy and rifling wear, no two barrels have exactly the same internal microscopic topography."

"When the bullet is fired, it rubs against the inside of the barrel, causing the bullet to wear slightly and leave marks."

"The marks on this bullet are equivalent to the 'fingerprints' of the gun."

"They're unique."

Lin Xinyi paused slightly, and gave a conclusion in a confident voice:

"So we just need to find the bear and get the warhead from the bear."

"Then we can identify and analyze the wear marks of the bullet and compare it with the guns of all the police officers in your police station, and we can determine whether the murderer is one of you."

This conjecture is bold, but it is not difficult to verify.

As long as you can find the bear.

Even, if everything goes well, even the identity of the murderer can be directly determined.

"But..."

Director Tsunoda questioned with a strange look:

"Even if we do find out, the bullet came from the rifle of one of our policemen."

"That only proves that he has been here in the past two days and shot back after encountering a brown bear."

"How can this prove that he is a murderer?"

"Even, you don't have any evidence that the mysterious man had anything to do with the deceased's fall from the cliff."

In his words, he pointed to the most deadly place.

Evidence.

Corpses, footprints, claw marks, bullets, shooting residues, these pieces of evidence do not add up to a complete chain of evidence.

Their existence only proves that:

1. The deceased accidentally fell off a cliff while fleeing, and the pursuer was suspected of having a gun.

2. Someone recently encountered a brown bear here and shot back.

These two conclusions cannot be taken for granted.

Because the existing evidence is far from enough to support the speculation that "the mysterious man is the pursuer".

And this is where the murderer comes in.

He killed people in this wilderness, without surveillance, let alone witnesses.

Even the cliff was jumped by the deceased himself.

He minimized his contact with the deceased as much as possible, thus avoiding the possibility of leaving more traces.

In this way, even if the police see through his methods, suspect him, and even confirm his identity, there will not be enough evidence to prove that he killed someone.

Lin Xinyi couldn't do anything about it.

After thinking about it, the only thing he could think of was... Fishing.

"It's really hard to find evidence, and it takes a lot of luck."

"Luckily, we seem to have had a lot of luck this time."

Lin Xinyi answered Director Tsunoda's question with a smile and a smile.

"What do you mean..."Director Tsunoda was surprised: "Could it be that Supervisor Lin, you have already found crucial evidence?" ”

"That's right." Lin Xin nodded: "I said that the body has been transported from the bottom of the cliff by the search and rescue team." ”

"I immediately performed an autopsy on the deceased, and it turned out that there were a few short hairs on her clothes."

"The deceased was a woman with long hair, and these short hairs stuck to her back were obviously left by the murderer."

"I suspect that the murderer, although cautious, still had physical contact with the deceased."

"He probably kidnapped the deceased at gunpoint on the trail and then forced the deceased into the woods and near the cliff."

"When they reached the vicinity of the cliff, the murderer pretended to shoot and kill, so that the deceased was frightened and fled to the cliff in a panic."

"And in the process..."

"The murderer once used his gloved hand to push the deceased's shoulders from behind, urging her to go faster."

"He may think he won't leave a mark if he wears gloves, but in reality, when he was near the deceased... Several hairs had already broken away from him and stuck to the deceased's back. ”

"Because the deceased was wearing black clothes of the same color as his hair, the murderer didn't notice those inconspicuous hairs at all."

"And this..."

Lin Xinyi carefully took out a transparent evidence bag from his pocket.

Inside the evidence bag were several strands of black hair:

"It's proof that he killed someone!"