Han Bo believed that figuring out how the murderer came in was probably the key to solving the case. He carefully observed the traces and rebuilt the scene of the murder based on the situation and marks learned by the police of the branch and ceramic fragments all over the floor.

"At the time of the incident, the neighbor next door heard something happening here, but it was not particularly intense and the time was short, which means that the murderer did not have a particularly fierce quarrel with the victim, and the entire crime process did not take long."

Han Bo paced back and forth for a few steps, squatted down and pointed at the door frame: "Combined with the scene, it can be inferred that the murderer grabbed the plate on the dining table first and threw it at Lu Fang who came out of the bedroom. Maybe he was too nervous and didn't smash it correctly, or maybe Lu Fang reacted quickly and avoided it in time. The plate hit the partition between the living room and the bedroom, and fell to the ground and broke."

Li Yaoxin nodded, walked to the door frame of the partition and gestured: "The murderer missed a blow, rushed up and pinched Lu Fang's neck with his left hand, pushed Lu Fang tightly against the door frame, pulled out a weapon such as a fruit knife or a dagger with his right hand, and stabbed Lu Fang's chest and abdomen."

"Lu Fang scratched and scratched with both hands, but she did not scratch the murderer's flesh, and she could not even pull off a piece of cloth and a button." A technical policeman tacitly played the role of the victim, making Li Yaoxin tie his neck and gesture with his hands.

Not everyone has the opportunity to rebuild the site with the leader, and another policeman ran into the bedroom and ran out again.

Li Yaoxin was worried that he had no goal, so he immediately raised his right leg: "The child heard the movement and came out. The murderer couldn't make any move. He kicked the child into the corner. He might be worried that Lu Fang was not dead, so he stabbed him a few more times before stabbing the child."

"Confirm that the two people were all dead, he began to rummage through the boxes and take away all his belongings. He remembered that the victim had a gold necklace and ran over and broke it. This was how the mark was caused, and then he fled in a hurry."

"The door was taken with me, but I ran in a hurry."

Han Bo walked out the door and pointed to the dim corridor and said, "When he ran away, he didn't pay attention to his feet. He hit the coal balls piled up by his neighbors in the corridor. He rolled all over the ground, and some of them were broken, so his left leg and the lower left corner of his shirt should have black gray marks of honeycomb coal."

This is like solving a case!

Li Yaoxin became more and more excited and blurted out: "Money killing should be money killing! The murderer may have only planned to steal at the beginning, but after entering, he found someone in the room. He didn't care about threats or had no idea about threats, so he directly killed and killed people to silence the words."

"But he hadn't stepped on it beforehand and tried to see if there was anyone in the house?"

"Most of the people who burglary are habitual offenders, and from the perspective of the methods of committing crimes, they should also be habitual offenders. He cannot make such low-level mistakes."

"The water room is there, the kitchen is public, and it is also there. Maybe the victim was not in the house when he tried."

"If this is the case, he will come in directly, and the two victims should have come in from outside and bumped into each other, rather than coming out of the bedroom to see the murderer."

"It may also be that the murderer is more cautious than we thought. He confirmed that there was no one in the house, knew that there was no one in the corridor, but he was not sure if there was anyone outside the door opening. When he walked out to observe, the two victims happened to come back from the water room, kitchen or toilet."

"It's possible that the water room, kitchen and toilet are all outside, and the victims go in very often."

The more Han Bo thought about it, the more reasonable it made. He focused his attention on the door lock again and said in an unquestionable tone: "The door lock is intact, which does not mean that it is an acquaintance. For a regular burglary, it is not difficult to open such a lock. But no matter what method or tool is used, as long as it is not the original key, it is impossible not to leave any clues. Remove it, remove the lock and take it back for good inspection."

"yes!"

"Journal Zhou, I, Han Bo, the investigation results show that it should be a single person committing the crime. This should be a money-killing. The murderer is very likely to be a habitual criminal engaged in burglary. His handprints were not collected, and only a footprint was extracted. From the special analysis of the footprints, the murderer was about 1.68 to 1.7 meters tall, weighed 115 to 120 kilograms, and had a medium figure. However, these calculated characteristics can only be used as reference."

Although the young deputy director of criminal investigation is not easy to serve, no one can deny his professional level.

Zhou Yan didn't dare to act like a joke, so he hurriedly picked up the paper and pen to record it.

Before he could speak, Han Bo continued: "It can now be confirmed that the murderer's left leg and lower left corner of his shirt are likely to be stained with black coal ash. This can be used as an important basis for investigation. In addition, please check all the burglaries in the branch office in the past six months, especially those door locks that are intact on the surface to see if they can be linked together."

"I will arrange for the police to investigate immediately. Director Han, what instructions do you have?"

"To ensure that everything is foolproof, Liu Tao's whereabouts must still be investigated. It is best to take protective measures against the victim Lu Fang's daughter Tian Lijuan to prevent the case from being done by Liu Tao. Disguising as a financial and murder scene is just to buy time for the next target."

"yes!"

"That's all for the time being. I'll go back to the bureau first and go to the task force to listen to the report at 10 o'clock in the evening."

"I'll send someone to see you off."

"No need, don't waste precious police force on this. I drove here and drove back by myself."

...

If you are in Nangang, the murders of two people who die will generally be solved by the Criminal Police Detachment of the Municipal Bureau.

But Dongping is not Nangang. The Municipal Bureau only has a "organized" criminal investigation detachment, but there is no criminal police detachment. If the Criminal Investigation Detachment organizes the investigation, it will also be necessary to draw police officers from the branch office. Deputy Detachment Captain Ma Xuefu threw himself into the anti-gang case, and the political commissar of the detachment came over and guided the investigation in the branch office task force.

Whether we can give guidance aside can at least ensure the case handling resources.

As the deputy director in charge of criminal investigation, Han Bo cannot do everything himself, nor can he leave the impression that he does not trust his subordinates. He explained a few words and hurried back to the municipal bureau.

I originally planned to close the door and call Secretary Lin to report the problems of Pingsheng Group, but I didn't expect that as soon as I returned to the bureau and walked into the office, Captain Du Zhigang of the Criminal Investigation Corps of the Provincial Department actually called.

In fact, it is normal for the leaders of the superior business department to call to inquire about the case. After all, Dongping did have a murder case of two people killed. The Criminal Investigation Detachment reported it as soon as possible as required, but he was just thinking about the cunning Hao Yingliang and had never thought about this before.

"I just came back from the scene. The task force has been established. Comrade Zhou Yan from Pingxi Branch personally served as the task force leader..."

"Xiao Han, logically speaking, you, a criminal investigation expert, do not need to worry about this case, but now the commander's responsibility system is implemented, and Dongping is the area where I am responsible for. I not only have to ask about it, but I have to go there. In fact, I am on the way to you."

The captain of the general team took action personally, and it seems that the provincial department has set new goals for the detection rate of existing murder cases this year.

When the superior came to guide the investigation, Han Bo naturally could not object and said hurriedly: "Council Du, it's great that you can come. Jiang is still the old one. I feel more at ease with you."

"I'm even more confident. Are you worried that I'll cause trouble for you?"

Du Zhigang joked and said lightly: "I'll arrive around 6:30 pm. I have half a day to find out the basic situation, and I happened to attend the case analysis meeting."

"Okay, I'll wait for you, I'll join you."

This incident reminded Han Bo that murders are more important than murders in the past few years. As a deputy director in charge of criminal investigation, you should be clear about what priorities are.

It is important to solve the murder case that just happened, and Pingsheng Group's affairs must be left unchanged. Moreover, the various impacts that may be caused, Pingsheng Group's affairs cannot be too hasty.

But the investigation work has just begun, what can I do now? Can I go to visit and inquire like front-line police officers and investigate the criminal and suspicious personnel in the jurisdiction of Pingxi Branch?

This was obviously inappropriate. Han Bo weighed it and rushed to the technical brigade to study bags of physical evidence collected from the murder site.

"Minister Han..."

"You guys are busy with your time, don't worry about me."

Han Bo waved his hand and walked behind a technical policeman to see him sorting out the biological examination materials collected at the scene. All of them must be placed in the refrigerator. After the vehicle is arranged and the relevant procedures are completed, two police officers will be sent to the Provincial Department of Criminal Technology Center for DNA inspection and identification.

Just as he was wondering whether Secretary Meng could get some funds from the city and build the DNA laboratory, an exclaim suddenly came from the office next door: "What is this? How could this happen!"

"What?" Did you find out? Han Bo walked over and asked.

A young trace engineer handed over a magnifying glass, pointed to the keyhole on the table and said, "Director Han, look, it seems that there is chewing gum in the keyhole."

I took the magnifying glass and looked at it. I carefully picked out a little with the signature. I looked carefully and found that it was indeed very similar to chewing gum.

The deputy captain of the technical brigade and several police officers who followed him were puzzled, but Han Bo was ecstatic and couldn't help but smile: "Success is chewing gum, failure is chewing gum. With this small chewing gum, the murderer can escape today and tomorrow, and he will be arrested sooner or later!"

"Director Han, is this the murderer left behind?"

"I know how the door lock was opened. He chewed the gum softly and used tools to stuff the softened gum into the keyhole. The old lock core's bulge is generally short in length. After being squeezed out by the gum, the murderer then inserted the lock core with a special tool to open the lock that had failed."

Looking at the incredible look of everyone, Han Bo explained: "There has never been such a case in Dongping, but it has happened in other places. The plainclothes detachment of my old unit has cracked cases of burglary using this method, and it is solved in a series of cases."

"How to break it?" an old policeman asked subconsciously.
Chapter completed!