Detective: Start with capturing and retrieving the dog

Chapter 221 Rules
"The age requirement for the firefighter exam is relatively strict. You can't take the exam until you are 24 years old." Wei Bin replied, "Does that mean the prisoner is within this age range?"

"If you are a retired soldier or have a bachelor's degree, you can take the exam at the age of 26." Zhao Linshan reminded from the side, "My cousin took the exam as a firefighter after he retired from the army a few years ago, so I know."

"If he is a retired soldier, he will be given priority when taking the firefighter test, but he was not selected..." Huo Gang frowned, "It means that he may not have been a soldier. He probably started preparing for the fire test as soon as he reached the age. ?”

"Maybe he broke out after failing the exam many times." Lu Wenbo also joined in the discussion. "Is it because he is an ordinary person and does not have a high degree of education? He will soon be over 24 years old and will have no chance to take the exam in the future. ?”

"Yo!?" Everyone at the scene turned to Lu Wenbo, expressing their surprise.

"You can do it, Lao Lu, your mind is very bright today!" Zhong Li teased.

"Hey, just say it before you guys finish! It's so difficult." Lu Wenbo said proudly.

"But, is it possible that he was originally a firefighter, but he made some mistakes and was fired?" Regarding Lao Lu's inference, Huo Gang expressed his doubts, "The prisoner knows this knowledge very well, maybe he has done something It’s been a while.”

"It is indeed possible." Han Xin nodded. "Both of these possibilities are very high. Let's check both of them. With the scope narrowed to this point, we should be able to check both possibilities."

"It's all on us." Huo Gang vowed.

Hu Chen reminded in a low voice from the side: "Captain Huo, don't forget that today we have to cooperate with the fire department to make a publicity to tell everyone how to evacuate correctly in this situation. This way, the casualties can be reduced next time a similar situation occurs."

"Oh, this kind of thing is left to Xiao Zhong and his team, she is good at dealing with the common people." Huo Gang glanced at Zhong Li and muttered, "If we catch the murderer early, we will do her a favor. Why can’t you figure it out?”

"If you do this, I won't care if she troubles you next time." Hu Chen glared at him coldly and said.

Next, the police began to investigate, and Han Xin went home with Zhao Linshan to wait for the results of the investigation.

Although all this is just reasoning, Han Xin feels that these two possibilities are very high.Substituting these two reasoning results into this case, everything makes sense.

Why did the suspect commit a crime suddenly after enduring it for so many years?It must have been caused by some incident. The suspect originally had an antisocial personality or suffered from huge psychological trauma, and his reaction would be greater when stimulated.

However, Han Xin did not expect that the prisoner's method of controlling flames turned out to be so simple.

"It seems that we have to continue to study." Han Xin sighed while sitting in the co-pilot.

"I wish I were a forensic doctor." Zhao Linshan muttered beside him, "I can make up for your shortcomings."

"No, I still think you are good as you are now. As a wife, you can live a good life, have tough conditions, and be open-minded. This is the key." Han Xin touched her head and smiled, "Besides, you use your online articles It’s also very important that the writer’s techniques help me edit. You know how to arouse the audience’s excitement, which can make my videos make a lot more money.”

"Humph, your mouth is so sweet." Zhao Linshan smiled with satisfaction, "I'll make something delicious for you when I get back."

Of course, Han Xin also considered the possibility that both inferences were wrong, but in this case we could only rely on the murderer's subsequent crimes to judge.In other words, more victims must be exchanged for information about the murderer.

Therefore, in order to prevent the prisoner from committing the next crime as soon as possible, we can only take a gamble first. If the gamble is successful, there will be fewer victims.

Just because it could save many lives, Han Xin felt that the risk was worth taking.

The police thought so too, so they cooperated very well with his work and launched an investigation just because of his reasoning.

In the end, Han Xin proved that he lived up to the police's expectations of him.

That afternoon, when Han Xin and Zhao Linshan were preparing dinner, the police had already found out the results.

"Mr. Han, the person has been found!" Hu Chen said excitedly over there, "It's almost the same as what we deduced!"

"Why didn't Captain Huo come to inform me today?" Han Xin asked curiously.

"Oh, Captain Huo was arrested by Captain Bell to cooperate with the fire station in publicity." Hu Chen explained, "Do you want to come over and take a look?"

"Send the suspect's personal information to me first," Han Xin replied.

Soon, Hu Chen sent the message.The suspect's name is Wu Jun. He experienced a fire when he was 14 years old, but it was not himself, but the neighbor's house caught fire.At that time, he rushed to his neighbor's house to try to help save people, but he was too weak to open the blocked window. He witnessed his neighbor and his wife being burned alive.

And this is the key that he opened the door to the abyss, after that he determined to be a firefighter.

To his family, classmates, and teachers, he was a brave and upright child, and everyone encouraged him to become a firefighter.However, in fact, he did it for some dark and twisted desires hidden deep in his heart.He began to prepare for the firefighter exam from the beginning, and his previous failures did not make him give up.

Ironically, the reason why Wu Jun failed to pass the exam to become a firefighter last time was because he was stuck at the interview level.

After all, whether you have antisocial personality or psychological trauma, it is easy for problems to arise during interviews.

Not only are the experiences consistent, but after analysis using recognition software, Wu Jun’s photo is 99% consistent with the person in the surveillance video.Therefore, when we get here, we can basically confirm that Wu Jun is the biggest suspect in this case.

But this is just the beginning. It’s useless to know who he is. You have to catch him before he commits the next crime.

This is something Han Xin hasn't figured out yet, which is the law of prisoner selection of targets.

Fire hazards must be the first priority, but there must be additional conditions.

Because to complete this kind of crime, the chimney effect must be used, and the condition for this effect to be established is a vertical passage like an elevator shaft.

But why was the KTV in Yangxiang City chosen?The chimney effect requires vertical passages of a certain height, but the KTV building was only on the fourth floor, which did not meet the conditions.

Han Xin only saw the arson incident in his hometown of Beichang City. He did not go to the scene of the arson incident in Yangxiang City and was not sure about the details.

So, Han Xin then asked Huo Gang for the files on the case that came to Yangxiang City.

But after all, I didn't go to the scene to see it in person, and there may be omissions just from the photos and the police's identification.

For example, the police did not notice the delayed ignition mechanism. Cigarette butts are so common in KTVs. It is reasonable that the police did not notice such a thing.

Because he had no clue, Han Xin could only search the "Xilelai" KTV on the Internet to see what the locals said about the incident.And Baidu search is still as stupid as ever, and the search results are a lot of irrelevant.

However, Han Xin discovered a piece of seemingly irrelevant information at a glance. It roughly stated that this KTV had blocked fire escapes and emergency escape routes for a long time, and the city management had repeatedly ordered it to make rectifications.

Seeing this, Han Xin sneered: "Obviously the effect of this rectification is not very good. Aren't there still cars parked in the fire exit when the incident happened? And there is also a lot of waste piled up in the emergency escape passage."

This soliloquy gave Han Xin a flash of inspiration, and he immediately searched for the burning office building in Beichang City...

The building was warned by the fire department many times over the fire sprinklers. Apparently, when the fire department came to inspect later, they found that their fire sprinklers were just for decoration, and the person in charge of the building would rather pay a fine than install fire sprinklers.

This account is easy to calculate: Compared with the cost of installing fire sprinklers, how much is the fine?
"Sure enough." Han Xin slapped his thigh and laughed, "So this guy's screening criteria are here!"

It is true that the reason why such major fire accidents occurred in these two places is basically because their fire protection conditions are imperfect.Currently, the building managers in these two places have been criminally detained by the police.

Although the root cause was the suspect's arson, if it were not for these fire hazards, so many people would not have died. The people in charge of these two places definitely bear a heavy responsibility.

If Xilelai KTV had not accumulated a large amount of waste in the fire escape and the owner parked his car in the fire escape, blocking the entry of fire trucks, the guests would have escaped from the fire escape before the fire spread. After all, it is only four stories high.

And if real fire sprinklers were installed in that office building, the fire would not have spread so quickly. It might even have been extinguished before it spread. How could so many people have died?
In this way, Han Xin also gained a better understanding of the murderer's criminal psychology: This guy is not necessarily an antisocial personality. He may feel that what he did is a kind of twisted justice.

However, Han Xin felt that the suspect should have moved to other cities.

Because once a major fire accident occurs in a place, the local area will inevitably publicize fire protection knowledge and increase firefighting efforts in the near future, making it difficult to continue committing crimes there.

Therefore, the suspect is likely to go to other cities and attack similar situations again.

Immediately, Han Xin notified the police of his findings and asked them to screen out places that had been reminded many times by firefighting agencies but refused to make corrections, and then deploy manpower and increase firefighting equipment in these places.

However, when Han Xin and Zhao Linshan were having dinner that night, the news on the TV was reporting a fire from Changyi City, Beihu Province.A fire broke out from the seventh floor to the top tenth floor of a department store. Firefighters are still putting out the fire.

"This bastard! He did it so quickly!" Looking at the blazing flames on the TV, Han Xin punched the table in anger.

(Monthly ticket thanks list is as follows)
　Thanks to Jun Jiantianxia, ​​Belief is Nothing, Book Friends 20190429065356540, Nanjing Yiba, 2 monthly tickets

　　Thanks to Uncle Shennong, Roaring Stick, Book Friends 20230202023031793, and many lucky monthly tickets
　　
　
(End of this chapter)