teach me how not to be the police

Chapter 076 There are many clues in the field work, and the technical introduction of serial and parallel cases

At [-]:[-] p.m., everyone was in the meeting room of the police station for a case meeting, and Director Tang also rushed over.

According to the division of labor, each group reports the work situation of the day.

The team leader said:

"Our group mainly did two things today, one was to interview the victim's family, and the other was to investigate a suspicious person.

When interviewing the victim’s father, Yuan Guozhi, he reported that he had bolted the front and rear doors last night. After discovering the situation in the morning, he did not pay attention to the back door, but he was sure that the front door was bolted; while investigating his two younger brothers, Yuan Zhengping and Yuan Zhengli , all reflect that when you get up in the morning, the back door is open.Therefore, it is inferred that the perpetrator is more likely to enter and exit through the back door.

At one o'clock in the morning, Yuan Guozhi got up, opened the back door, and went to the toilet. At this time, the back door was still locked, and nothing abnormal was found. Therefore, the crime occurred after one o'clock in the morning today.

We have checked the time mentioned by Yuan Guozhi, and the time is accurate.

It is very strange that Yuan Guozhi's family has never heard any noise.

We rushed to Pengjia Dawu Village, Pengjia Dawu Bay, and found Yuan Shuhua's boyfriend Peng Zhigao. After further investigation, his family confirmed that he was at home last night and did not go out, so the suspicion of committing the crime can be ruled out.

Today's investigation by our group showed that the crime occurred after one o'clock in the morning, and the perpetrator most likely entered and exited from behind. "

"Is it possible that the perpetrator slipped into the room while Yuan Guozhi was going to the toilet?" Director Zhang asked.

"This kind of situation can basically be ruled out. Because the toilet in his house is not far from the back door, he just smoked a cigarette. Besides, it is so quiet at night, if someone is walking, he can definitely hear it Yes." said the group leader.

The leader of the second group, Ke Zunping, said:

"Our group mainly conducts interviews on the peripheral situation. Judging from the current interview situation, we have a little clue.

Interviewing Yuan Guozhi's neighbors and people in Benwanzi, villager Yuan Guohao (male, 56 years old) reported that he got up before 4 o'clock in the morning.The purpose is to make way for the cattle during the farming season.Because the cattle he used were shared by several families, and each family was in a hurry to use them, so he got up early.

A little more than 4 o'clock, it is estimated that it is around 4 o'clock.He leads the cow.Arching the iron plow.When I got to the entrance of Wanzi, I saw a dark figure walking towards the east of the bay, walking relatively fast.From time to time, lights can be seen.Due to the relatively long distance, he couldn't see the black figure's face and clothes clearly. Only by the shaking of the light, he felt that the other party was holding something in his hand, but he couldn't be sure what it was.

This black shadow appeared near the scene at the time of the crime, and it is suspected of committing a major crime!

We continued to visit along the east side of the bay, which is the direction where Heiying left, and found another witness, Wu Fengjie, in Wuping Jiangwan next door.

Wu Fengjie, male, aged 65, is a farmer with asthma.He got up early and went out to graze the cattle.On the mechanical farming road leading from Wanzi to the township, a middle-aged man quickly passed him with a bag in his hand and walked towards the township. According to our repeated calculations, the time should be at [-]:[-] Left and right, we conducted a detection experiment, from the scene bay to the location where Wu Fengjie met the middle-aged man, the walking time was just right. In addition, the middle-aged man was traveling in the same direction as the black shadow mentioned earlier. Therefore, we It is deduced that the middle-aged man Wu Fengjie met is the same person as the black shadow Yuan Guohao mentioned earlier! "

There is basis for such reasoning, and I couldn't help but nodded.

Team leader Ke Zunping continued:

"After we worked repeatedly, after several people finished eating three packs of cigarettes, and after I made sure to keep it secret, Wu Fengjie said that he knew this middle-aged man from Wangxinghewan, a neighboring village, and he didn't know the specific name. , but he knew that this man's father was nicknamed Wang Mazi.

We quickly rushed to Wang Xinghewan, Shijiawan Village. After investigation, there was only one person named Wang Mazi in this bay, and Wang Mazi also had only one son. His scientific name was Wang Caijiang, male, 38 years old, 172cm tall, and a farmer.The economic situation is average, and he is very cunning, with no criminal record or bad deeds.After an in-depth investigation of the surrounding areas, it was found that this person often came out at night, and the people did not know what he was doing at night.

Considering the seriousness of the case, we did not disturb him. "

Director Zhang asked:

"Wang Caijiang's family situation?"

Team Leader Ke replied:

"Wang Caijiang and Wang Mazi lived separately. There are four people living in Wang Caijiang's family. His wife is Hu Sufang, who is the same age as him. They also have two daughters. The eldest daughter is Wang Fang, who is 16 years old, and the youngest daughter is Wang Xiaofang, who is 15 years old. None of them went to school, and they were farming at home."

"Okay, this clue is very important!" Director Tang said with a smile.

The leader of the three groups, Chen Guanghui, said:

"We have investigated the same type of cases in the four villages of Yuanjiafan Village, Shijiawan Village, Xiaxian Village, and Fengpu Village. We have not found any similar cases, but we have found out the same type of people. Xu Pingjun in Xujiawan, Xiancun had a criminal record of entering and raping women. We carried out a lot of secret work around Xu Pingjun.

Xu Pingjun, male, 28 years old, single, about 165cm tall, works in agriculture.Those who usually behave in a low-key way like to joke with women, and sometimes take advantage of the joke to hug women.It is well documented that on the tenth day of the twelfth lunar month of the previous year, he slipped to the home of Ke Xi'e (34 years old), a woman from Benwan, and hid in the kitchen. Ke Xi'e found him and drove him away with a stick.

After checking with Ke Xi'e, it was indeed true.Since Ke Xi'e's husband, Xu Kai, usually goes out to do errands and is not at home, Xu Pingjun often comes to her house to play, and sometimes touches Ke Xi'e.However, after being driven away this time, Xu Pingjun never visited her house again.

This is the case with our group. "

Afterwards, the intelligence team and the police station reported their respective situations. The police station found many cases of suspected rape, and I recorded them all in my notebook.

After the field office and the police station introduced the situation, Captain Zheng said on behalf of the technical team:

"I would like to introduce the situation of the site survey to the leaders.

Yuan Shuhua's home is located in the middle of Yuanjiawan, Yuanjiafan Village.It is a brick-concrete structure with four houses facing south. There is a toilet in the northwest corner, 18 meters away from the house. Other directions, near or far, are all residents' rooms.The main room is in the middle of the four houses, Yuan Shuhua's bedroom is on the west side, and the bedrooms of her parents and two younger brothers are on the east side.

There are two doors to the outside world, the front door and the back door.According to access.The front door was locked after the incident.At the front door, we also found no suspicious traces; just now, the team leader Tan introduced that Yuan Shuhua's two younger brothers both reported that the back door was open.The back door is a split wooden door, on the wooden latch.We found fresh traces in dots and lines.After research by Captain Li and I.According to the characteristics of the traces, it was analyzed that the perpetrator entered the room after using scissors pointed objects to toggle the latch, and we also conducted experiments.It has been proved through experiments that the door can be opened in this way.According to the analysis, this back door is the entrance and exit channel for the perpetrators, dialing the door to enter the room.

After repeated observations, we found a silk-like object on the door locks of Yuan Guozhi's room and the rooms of his two sons. It is believed that it is more likely to be the residue of hemp rope. The door of the room had been knocked backwards, leaving residues of hemp rope.

The door of Yuan Shuhua's room was open, and there were no obvious signs of damage; there was a window on the south wall, and the window was installed with glass, but two pieces of glass were missing. There was no anti-theft net installed on the outside, and there were no curtains installed in the room. The window showed no obvious signs of damage by prying. The possibility of breaking into the room through the window was ruled out.

There is a table under the south window in the room, a bookcase in the southwest corner, and a wardrobe in the northwest corner. There are 3 yuan in cash in the clothes in the wardrobe.There is a bed in the northeast corner. There is a pair of women's shorts on the north side of the bed. There is a hole in the trousers, which is oval in shape and about [-]cm in diameter. Formed by cutting; in the middle of the bed, there are dots of blood.

There was a button switch on the east side of the bed, and thick glove prints were extracted from the button, but the switch and the light bulb in the room were missing. We searched around the site and found no switch or light bulb.

Let me introduce Yuan Shuhua's injury below:

There is a tooth mark on the right breast, which is relatively superficial; there are two parallel scratches on the inner side of the right thigh. After measurement, the length is 7cm, the width of a single scar is 2cm, the depth is 0.2cm, and the distance between the two scars is 5cm. From the inner thigh to the middle of the thigh obliquely, the inside is heavy and the outside is light.

After the forensic examination, Yuan Shuhua was indeed raped. There was fresh redness and swelling in the vagina, and a fresh rupture in the hymen. The exact location of the rupture was at nine o'clock. The perpetrator's semen.

Based on the site survey, we have drawn the following conclusions:

1. The nature of the case: rape, injury;

2. The perpetrator is one person, male.

3. The process of committing the crime: the perpetrator peeped through the south window and only the victim was sleeping alone, so he bent to the back of the house, opened the back door with the tip of scissors and entered the room, and closed the doors of the other two rooms with hemp rope. Finally, he opened the door and entered Yuan Shuhua's room, pulled off the button switch, dropped the light bulb in the room, and used a special tool to injure and stun Yuan Shuhua. blouse and bra, and raped Yuan Shuhua.During the rape, she may have felt inconvenient, so she took off Yuan Shuhua's shorts and continued to rape.

After the rape was over, he took away the button switch, the light bulb, and the ropes that were locked inside the room, and fled the scene through the back door.

4. On-site traces and physical evidence: fine spots, tooth marks, rope fibers, scissor marks, glove marks.

5. The tools carried by the perpetrator include: lighting tools, scissors, ropes, and special stun tools.

6. Parallel cases: We have repeatedly compared the scars on Yuan Shuhua's body. The length, depth, distance, etc. are all consistent with the scars on the victims of previous cases. It is certain that they were formed by the same tool. Therefore, this case The case and previous cases can be investigated in parallel.

This is the case with our on-site investigation. "

After Captain Zheng finished speaking, there was silence in the conference room. I knew that there were no fingerprints and footprints that everyone expected, so I was very disappointed.

For a while, the atmosphere in Ruoda's meeting room was tense, with a feeling of suffocation, only the sound of drinking water, smoking vigorously, and occasionally coughing.

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